feat(docs): Add power profiler

8 files changed, 1045 insertions, 0 deletions

diff --git a/docs/docusaurus.config.js b/docs/docusaurus.config.js
index f22610a..ab7ec12 100644
--- a/docs/docusaurus.config.js
+++ b/docs/docusaurus.config.js
@@ -30,6 +30,11 @@ module.exports = {
         },
         { to: "blog", label: "Blog", position: "left" },
         {
+          to: "power-profiler",
+          label: "Power Profiler",
+          position: "left",
+        },
+        {
           href: "https://github.com/zmkfirmware/zmk",
           label: "GitHub",
           position: "right",
diff --git a/docs/src/components/custom-board-form.js b/docs/src/components/custom-board-form.js
new file mode 100644
index 0000000..0279f6b
--- /dev/null
+++ b/docs/src/components/custom-board-form.js
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+import React from "react";
+import PropTypes from "prop-types";
+
+function CustomBoardForm({
+  bindPsuType,
+  bindOutputV,
+  bindEfficiency,
+  bindQuiescentMicroA,
+  bindOtherQuiescentMicroA,
+}) {
+  return (
+    <div className="profilerSection">
+      <h3>Custom Board</h3>
+      <div className="row">
+        <div className="col col--4">
+          <div className="profilerInput">
+            <label>Power Supply Type</label>
+            <select {...bindPsuType}>
+              <option hidden value="">
+                Select a PSU type
+              </option>
+              <option value="LDO">LDO</option>
+              <option value="SWITCHING">Switching</option>
+            </select>
+          </div>
+        </div>
+        <div className="col col--4">
+          <div className="profilerInput">
+            <label>
+              Output Voltage{" "}
+              <span tooltip="Output Voltage of the PSU used by the system">
+                ⓘ
+              </span>
+            </label>
+            <input {...bindOutputV} type="range" min="1.8" step=".1" max="5" />
+            <span>{parseFloat(bindOutputV.value).toFixed(1)}V</span>
+          </div>
+          {bindPsuType.value === "SWITCHING" && (
+            <div className="profilerInput">
+              <label>
+                PSU Efficiency{" "}
+                <span tooltip="The estimated efficiency with a VIN of 3.8 and the output voltage entered above">
+                  ⓘ
+                </span>
+              </label>
+              <input
+                {...bindEfficiency}
+                type="range"
+                min=".50"
+                step=".01"
+                max="1"
+              />
+              <span>{Math.round(bindEfficiency.value * 100)}%</span>
+            </div>
+          )}
+        </div>
+        <div className="col col--4">
+          <div className="profilerInput">
+            <label>
+              PSU Quiescent{" "}
+              <span tooltip="The standby usage of the PSU">ⓘ</span>
+            </label>
+            <div className="inputBox">
+              <input {...bindQuiescentMicroA} type="number" />
+              <span>µA</span>
+            </div>
+          </div>
+          <div className="profilerInput">
+            <label>
+              Other Quiescent{" "}
+              <span tooltip="Any other standby usage of the board (voltage dividers, extra ICs, etc)">
+                ⓘ
+              </span>
+            </label>
+            <div className="inputBox">
+              <input {...bindOtherQuiescentMicroA} type="number" />
+              <span>µA</span>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
+CustomBoardForm.propTypes = {
+  bindPsuType: PropTypes.Object,
+  bindOutputV: PropTypes.Object,
+  bindEfficiency: PropTypes.Object,
+  bindQuiescentMicroA: PropTypes.Object,
+  bindOtherQuiescentMicroA: PropTypes.Object,
+};
+
+export default CustomBoardForm;
diff --git a/docs/src/components/power-estimate.js b/docs/src/components/power-estimate.js
new file mode 100644
index 0000000..2619862
--- /dev/null
+++ b/docs/src/components/power-estimate.js
@@ -0,0 +1,266 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+import React from "react";
+import PropTypes from "prop-types";
+import { displayPower, underglowPower, zmkBase } from "../data/power";
+import "../css/power-estimate.css";
+
+// Average monthly discharge percent
+const lithiumIonMonthlyDischargePercent = 5;
+// Average voltage of a lithium ion battery based of discharge graphs
+const lithiumIonAverageVoltage = 3.8;
+// Average discharge efficiency of li-ion https://en.wikipedia.org/wiki/Lithium-ion_battery
+const lithiumIonDischargeEfficiency = 0.85;
+// Range of the discharge efficiency
+const lithiumIonDischargeEfficiencyRange = 0.05;
+
+// Proportion of time spent typing (keys being pressed down and scanning). Estimated to 2%.
+const timeSpentTyping = 0.02;
+
+// Nordic power profiler kit accuracy
+const measurementAccuracy = 0.2;
+
+const batVolt = lithiumIonAverageVoltage;
+
+const palette = [
+  "#bbdefb",
+  "#90caf9",
+  "#64b5f6",
+  "#42a5f5",
+  "#2196f3",
+  "#1e88e5",
+  "#1976d2",
+];
+
+function formatUsage(microWatts) {
+  if (microWatts > 1000) {
+    return (microWatts / 1000).toFixed(1) + "mW";
+  }
+
+  return Math.round(microWatts) + "µW";
+}
+
+function voltageEquivalentCalc(powerSupply) {
+  if (powerSupply.type === "LDO") {
+    return batVolt;
+  } else if (powerSupply.type === "SWITCHING") {
+    return powerSupply.outputVoltage / powerSupply.efficiency;
+  }
+}
+
+function formatMinutes(minutes, precision, floor) {
+  let message = "";
+  let count = 0;
+
+  let units = ["year", "month", "week", "day", "hour", "minute"];
+  let multiples = [60 * 24 * 365, 60 * 24 * 30, 60 * 24 * 7, 60 * 24, 60, 1];
+
+  for (let i = 0; i < units.length; i++) {
+    if (minutes >= multiples[i]) {
+      const timeCount = floor
+        ? Math.floor(minutes / multiples[i])
+        : Math.ceil(minutes / multiples[i]);
+      minutes -= timeCount * multiples[i];
+      count++;
+      message +=
+        timeCount + (timeCount > 1 ? ` ${units[i]}s ` : ` ${units[i]} `);
+    }
+
+    if (count == precision) return message;
+  }
+
+  return message || "0 minutes";
+}
+
+function PowerEstimate({
+  board,
+  splitType,
+  batteryMilliAh,
+  usage,
+  underglow,
+  display,
+}) {
+  if (!board || !board.powerSupply.type || !batteryMilliAh) {
+    return (
+      <div className="powerEstimate">
+        <h3>
+          <span>{splitType !== "standalone" ? splitType + ": " : " "}...</span>
+        </h3>
+        <div className="powerEstimateBar">
+          <div
+            className="powerEstimateBarSection"
+            style={{
+              width: "100%",
+              background: "#e0e0e0",
+              mixBlendMode: "overlay",
+            }}
+          ></div>
+        </div>
+      </div>
+    );
+  }
+
+  const powerUsage = [];
+  let totalUsage = 0;
+
+  const voltageEquivalent = voltageEquivalentCalc(board.powerSupply);
+
+  // Lithium ion self discharge
+  const lithiumMonthlyDischargemAh =
+    parseInt(batteryMilliAh) * (lithiumIonMonthlyDischargePercent / 100);
+  const lithiumDischargeMicroA = (lithiumMonthlyDischargemAh * 1000) / 30 / 24;
+  const lithiumDischargeMicroW = lithiumDischargeMicroA * batVolt;
+
+  totalUsage += lithiumDischargeMicroW;
+  powerUsage.push({
+    title: "Battery Self Discharge",
+    usage: lithiumDischargeMicroW,
+  });
+
+  // Quiescent current
+  const quiescentMicroATotal =
+    parseInt(board.powerSupply.quiescentMicroA) +
+    parseInt(board.otherQuiescentMicroA);
+  const quiescentMicroW = quiescentMicroATotal * voltageEquivalent;
+
+  totalUsage += quiescentMicroW;
+  powerUsage.push({
+    title: "Board Quiescent Usage",
+    usage: quiescentMicroW,
+  });
+
+  // ZMK overall usage
+  const zmkMicroA =
+    zmkBase[splitType].idle +
+    (splitType !== "peripheral" ? zmkBase.hostConnection * usage.bondedQty : 0);
+
+  const zmkMicroW = zmkMicroA * voltageEquivalent;
+  const zmkUsage = zmkMicroW * (1 - usage.percentAsleep);
+
+  totalUsage += zmkUsage;
+  powerUsage.push({
+    title: "ZMK Base Usage",
+    usage: zmkUsage,
+  });
+
+  // ZMK typing usage
+  const zmkTypingMicroA = zmkBase[splitType].typing * timeSpentTyping;
+
+  const zmkTypingMicroW = zmkTypingMicroA * voltageEquivalent;
+  const zmkTypingUsage = zmkTypingMicroW * (1 - usage.percentAsleep);
+
+  totalUsage += zmkTypingUsage;
+  powerUsage.push({
+    title: "ZMK Typing Usage",
+    usage: zmkTypingUsage,
+  });
+
+  if (underglow.glowEnabled) {
+    const underglowAverageLedMicroA =
+      underglow.glowBrightness *
+        (underglowPower.ledOn - underglowPower.ledOff) +
+      underglowPower.ledOff;
+
+    const underglowMicroA =
+      underglowPower.firmware +
+      underglow.glowQuantity * underglowAverageLedMicroA;
+
+    const underglowMicroW = underglowMicroA * voltageEquivalent;
+
+    const underglowUsage = underglowMicroW * (1 - usage.percentAsleep);
+
+    totalUsage += underglowUsage;
+    powerUsage.push({
+      title: "RGB Underglow",
+      usage: underglowUsage,
+    });
+  }
+
+  if (display.displayEnabled && display.displayType) {
+    const { activePercent, active, sleep } = displayPower[display.displayType];
+
+    const displayMicroA = active * activePercent + sleep * (1 - activePercent);
+    const displayMicroW = displayMicroA * voltageEquivalent;
+    const displayUsage = displayMicroW * (1 - usage.percentAsleep);
+
+    totalUsage += displayUsage;
+    powerUsage.push({
+      title: "Display",
+      usage: displayUsage,
+    });
+  }
+
+  // Calculate the average minutes of use
+  const estimatedAvgEffectiveMicroWH =
+    batteryMilliAh * batVolt * lithiumIonDischargeEfficiency * 1000;
+
+  const estimatedAvgMinutes = Math.round(
+    (estimatedAvgEffectiveMicroWH / totalUsage) * 60
+  );
+
+  // Calculate worst case for battery life
+  const worstLithiumIonDischargeEfficiency =
+    lithiumIonDischargeEfficiency - lithiumIonDischargeEfficiencyRange;
+
+  const estimatedWorstEffectiveMicroWH =
+    batteryMilliAh * batVolt * worstLithiumIonDischargeEfficiency * 1000;
+
+  const highestTotalUsage = totalUsage * (1 + measurementAccuracy);
+
+  const estimatedWorstMinutes = Math.round(
+    (estimatedWorstEffectiveMicroWH / highestTotalUsage) * 60
+  );
+
+  // Calculate range (+-) of minutes using average - worst
+  const estimatedRange = estimatedAvgMinutes - estimatedWorstMinutes;
+
+  return (
+    <div className="powerEstimate">
+      <h3>
+        <span>{splitType !== "standalone" ? splitType + ": " : " "}</span>
+        {formatMinutes(estimatedAvgMinutes, 2, true)} (±
+        {formatMinutes(estimatedRange, 1, false).trim()})
+      </h3>
+      <div className="powerEstimateBar">
+        {powerUsage.map((p, i) => (
+          <div
+            key={p.title}
+            className={
+              "powerEstimateBarSection" + (i > 1 ? " rightSection" : "")
+            }
+            style={{
+              width: (p.usage / totalUsage) * 100 + "%",
+              background: palette[i],
+            }}
+          >
+            <div className="powerEstimateTooltipWrap">
+              <div className="powerEstimateTooltip">
+                <div>
+                  {p.title} - {Math.round((p.usage / totalUsage) * 100)}%
+                </div>
+                <div style={{ fontSize: ".875rem" }}>
+                  ~{formatUsage(p.usage)} estimated avg. consumption
+                </div>
+              </div>
+            </div>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}
+
+PowerEstimate.propTypes = {
+  board: PropTypes.Object,
+  splitType: PropTypes.string,
+  batteryMilliAh: PropTypes.number,
+  usage: PropTypes.Object,
+  underglow: PropTypes.Object,
+  display: PropTypes.Object,
+};
+
+export default PowerEstimate;
diff --git a/docs/src/css/power-estimate.css b/docs/src/css/power-estimate.css
new file mode 100644
index 0000000..e876ec2
--- /dev/null
+++ b/docs/src/css/power-estimate.css
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+.powerEstimate {
+  margin: 20px 0;
+}
+
+.powerEstimate > h3 > span {
+  text-transform: capitalize;
+}
+
+.powerEstimateBar {
+  height: 64px;
+  width: 100%;
+  box-shadow: rgba(0, 0, 0, 0.03) 0px 10px 20px 0px,
+    rgba(0, 0, 0, 0.1) 0px 1px 4px 0px;
+  border-radius: 64px;
+  display: flex;
+  justify-content: flex-start;
+  overflow: hidden;
+}
+
+.powerEstimateBarSection {
+  transition: all 0.2s ease;
+  flex-grow: 1;
+}
+
+.powerEstimateBarSection.rightSection {
+  display: flex;
+  justify-content: flex-end;
+}
+
+.powerEstimateTooltipWrap {
+  position: absolute;
+  visibility: hidden;
+  opacity: 0;
+  transform: translateY(calc(-100% - 8px));
+  transition: opacity 0.2s ease;
+}
+
+.powerEstimateBarSection:hover .powerEstimateTooltipWrap {
+  visibility: visible;
+  opacity: 1;
+}
+
+.powerEstimateTooltip {
+  display: block;
+  position: relative;
+  box-shadow: var(--ifm-global-shadow-tl);
+  width: 260px;
+  padding: 10px;
+  border-radius: 4px;
+  background: var(--ifm-background-surface-color);
+  transform: translateX(-15px);
+}
+
+.rightSection .powerEstimateTooltip {
+  transform: translateX(15px);
+}
+
+.powerEstimateTooltip:after {
+  content: "";
+  position: absolute;
+  top: 100%;
+  left: 27px;
+  margin-left: -8px;
+  width: 0;
+  height: 0;
+  border-top: 8px solid var(--ifm-background-surface-color);
+  border-right: 8px solid transparent;
+  border-left: 8px solid transparent;
+}
+
+.rightSection .powerEstimateTooltip:after {
+  left: unset;
+  right: 27px;
+  margin-right: -8px;
+}
diff --git a/docs/src/css/power-profiler.css b/docs/src/css/power-profiler.css
new file mode 100644
index 0000000..94c4a5d
--- /dev/null
+++ b/docs/src/css/power-profiler.css
@@ -0,0 +1,195 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+.profilerSection {
+  margin: 10px 0;
+  padding: 10px 20px;
+  background: var(--ifm-background-surface-color);
+  border-radius: 4px;
+  box-shadow: rgba(0, 0, 0, 0.03) 0px 10px 20px 0px,
+    rgba(0, 0, 0, 0.1) 0px 1px 4px 0px;
+}
+
+.profilerInput {
+  margin-bottom: 12px;
+}
+
+.profilerInput label {
+  display: block;
+}
+
+.profilerDisclaimer {
+  padding: 20px 0;
+  font-size: 14px;
+}
+
+span[tooltip] {
+  position: relative;
+}
+
+span[tooltip]::before {
+  content: attr(tooltip);
+  font-size: 13px;
+  padding: 5px 10px;
+  position: absolute;
+  width: 220px;
+  border-radius: 4px;
+  background: var(--ifm-background-surface-color);
+  opacity: 0;
+  visibility: hidden;
+  box-shadow: rgba(0, 0, 0, 0.03) 0px 10px 20px 0px,
+    rgba(0, 0, 0, 0.1) 0px 1px 4px 0px;
+  transition: opacity 0.2s ease;
+  transform: translate(-50%, -100%);
+  left: 50%;
+}
+
+span[tooltip]::after {
+  content: "";
+  position: absolute;
+  border-top: 8px solid var(--ifm-background-surface-color);
+  border-right: 8px solid transparent;
+  border-left: 8px solid transparent;
+  width: 0;
+  height: 0;
+  opacity: 0;
+  visibility: hidden;
+  transition: opacity 0.2s ease;
+  transform: translateX(-50%);
+  left: 50%;
+}
+
+span[tooltip]:hover::before {
+  opacity: 1;
+  visibility: visible;
+}
+
+span[tooltip]:hover::after {
+  opacity: 1;
+  visibility: visible;
+}
+
+input[type="checkbox"].toggleInput {
+  display: none;
+}
+
+input[type="checkbox"] + .toggle {
+  margin: 6px 2px;
+  height: 20px;
+  width: 48px;
+  background: rgba(0, 0, 0, 0.5);
+  border-radius: 20px;
+  transition: all 0.2s ease;
+  user-select: none;
+}
+
+input[type="checkbox"] + .toggle > .toggleThumb {
+  height: 16px;
+  border-radius: 20px;
+  transform: translate(2px, 2px);
+  width: 16px;
+  background: var(--ifm-color-white);
+  box-shadow: var(--ifm-global-shadow-lw);
+  transition: all 0.2s ease;
+}
+
+input[type="checkbox"]:checked + .toggle {
+  background: var(--ifm-color-primary);
+}
+
+input[type="checkbox"]:checked + .toggle > .toggleThumb {
+  transform: translate(30px, 2px);
+}
+
+select {
+  border: solid 1px rgba(0, 0, 0, 0.5);
+  border-radius: 4px;
+  display: flex;
+  height: 34px;
+  width: 200px;
+
+  background: inherit;
+  color: inherit;
+  font-size: inherit;
+  line-height: inherit;
+  margin: 0;
+  padding: 3px 5px;
+  outline: none;
+}
+
+select > option {
+  background: var(--ifm-background-surface-color);
+}
+
+.inputBox {
+  border: solid 1px rgba(0, 0, 0, 0.5);
+  border-radius: 4px;
+  display: flex;
+  width: 200px;
+}
+
+.inputBox > input {
+  background: inherit;
+  color: inherit;
+  font-size: inherit;
+  line-height: inherit;
+  margin: 0;
+  padding: 3px 10px;
+  border: none;
+  width: 100%;
+  min-width: 0;
+  text-align: right;
+  outline: none;
+}
+
+.inputBox > span {
+  background: rgba(0, 0, 0, 0.05);
+  border-left: solid 1px rgba(0, 0, 0, 0.5);
+  padding: 3px 10px;
+}
+
+/* Chrome, Safari, Edge, Opera */
+.inputBox > input::-webkit-outer-spin-button,
+.inputBox > input::-webkit-inner-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+
+/* Firefox */
+.inputBox > input[type="number"] {
+  -moz-appearance: textfield;
+}
+
+.disclaimerHolder {
+  position: absolute;
+  width: 100vw;
+  height: 100vh;
+  top: 0;
+  left: 0;
+  z-index: 99;
+  background: rgba(0, 0, 0, 0.5);
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+
+.disclaimer {
+  padding: 20px 20px;
+  background: var(--ifm-background-surface-color);
+  border-radius: 4px;
+  box-shadow: rgba(0, 0, 0, 0.03) 0px 10px 20px 0px,
+    rgba(0, 0, 0, 0.1) 0px 1px 4px 0px;
+  width: 500px;
+}
+
+.disclaimer > button {
+  border: none;
+  background: var(--ifm-color-primary);
+  color: var(--ifm-color-white);
+  cursor: pointer;
+  border-radius: 4px;
+  padding: 5px 15px;
+}
diff --git a/docs/src/data/power.js b/docs/src/data/power.js
new file mode 100644
index 0000000..bf34f17
--- /dev/null
+++ b/docs/src/data/power.js
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/**
+ * This file holds all current measurements related to ZMK features and hardware
+ * All current measurements are in micro amps. Measurements were taken on a Nordic Power Profiler Kit
+ * The test device to get these values was three nice!nanos (nRF52840).
+ */
+
+export const zmkBase = {
+  hostConnection: 23, // How much current it takes to have an idle host connection
+  standalone: {
+    idle: 0, // No extra idle current
+    typing: 315, // Current while holding down a key. Represents polling+BLE notification power
+  },
+  central: {
+    idle: 490, // Idle current for connection to right half
+    typing: 380, // Current while holding down a key. Represents polling+BLE notification power
+  },
+  peripheral: {
+    idle: 20, // Idle current for connection to left half
+    typing: 365, // Current while holding down a key. Represents polling+BLE notification power
+  },
+};
+
+/**
+ * ZMK board power measurements
+ *
+ * Power supply can be an LDO or switching
+ * Quiescent and other quiescent are measured in micro amps
+ *
+ * Switching efficiency represents the efficiency of converting from
+ * 3.8V (average li-ion voltage) to the output voltage of the power supply
+ */
+export const zmkBoards = {
+  "nice!nano": {
+    name: "nice!nano",
+    powerSupply: {
+      type: "LDO",
+      outputVoltage: 3.3,
+      quiescentMicroA: 55,
+    },
+    otherQuiescentMicroA: 4,
+  },
+  "nice!60": {
+    powerSupply: {
+      type: "SWITCHING",
+      outputVoltage: 3.3,
+      efficiency: 0.95,
+      quiescentMicroA: 4,
+    },
+    otherQuiescentMicroA: 4,
+  },
+};
+
+export const underglowPower = {
+  firmware: 60, // ZMK power usage while underglow feature is turned on (SPIM mostly)
+  ledOn: 20000, // Estimated power consumption of a WS2812B at 100% (can be anywhere from 10mA to 30mA)
+  ledOff: 460, // Quiescent current of a WS2812B
+};
+
+export const displayPower = {
+  // Based on GoodDisplay's 1.02in epaper
+  EPAPER: {
+    activePercent: 0.05, // Estimated one refresh per minute taking three seconds
+    active: 1500, // Power draw during refresh
+    sleep: 5, // Idle power draw of an epaper
+  },
+  // 128x32 SSD1306
+  OLED: {
+    activePercent: 0.5, // Estimated sleeping half the time (based on idle)
+    active: 10000, // Estimated power draw when about half the pixels are on
+    sleep: 7, // Deep sleep power draw (display off)
+  },
+};
diff --git a/docs/src/pages/power-profiler.js b/docs/src/pages/power-profiler.js
new file mode 100644
index 0000000..ca46f5c
--- /dev/null
+++ b/docs/src/pages/power-profiler.js
@@ -0,0 +1,297 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+import React, { useState } from "react";
+import classnames from "classnames";
+import Layout from "@theme/Layout";
+import styles from "./styles.module.css";
+import PowerEstimate from "../components/power-estimate";
+import CustomBoardForm from "../components/custom-board-form";
+import { useInput } from "../utils/hooks";
+import { zmkBoards } from "../data/power";
+import "../css/power-profiler.css";
+
+const Disclaimer = `This profiler makes many assumptions about typing
+              activity, battery characteristics, hardware behavior, and
+              doesn't account for error of user inputs. For example battery 
+              mAh, which is often incorrectly advertised higher than it's actual capacity.
+              While it tries to estimate power usage using real power readings of ZMK, 
+              every person will have different results that may be worse or even
+              better than the estimation given here.`;
+
+function PowerProfiler() {
+  const { value: board, bind: bindBoard } = useInput("");
+  const { value: split, bind: bindSplit } = useInput(false);
+  const { value: batteryMilliAh, bind: bindBatteryMilliAh } = useInput(110);
+
+  const { value: psuType, bind: bindPsuType } = useInput("");
+  const { value: outputV, bind: bindOutputV } = useInput(3.3);
+  const { value: quiescentMicroA, bind: bindQuiescentMicroA } = useInput(55);
+  const {
+    value: otherQuiescentMicroA,
+    bind: bindOtherQuiescentMicroA,
+  } = useInput(0);
+  const { value: efficiency, bind: bindEfficiency } = useInput(0.9);
+
+  const { value: bondedQty, bind: bindBondedQty } = useInput(1);
+  const { value: percentAsleep, bind: bindPercentAsleep } = useInput(0.5);
+
+  const { value: glowEnabled, bind: bindGlowEnabled } = useInput(false);
+  const { value: glowQuantity, bind: bindGlowQuantity } = useInput(10);
+  const { value: glowBrightness, bind: bindGlowBrightness } = useInput(1);
+
+  const { value: displayEnabled, bind: bindDisplayEnabled } = useInput(false);
+  const { value: displayType, bind: bindDisplayType } = useInput("");
+
+  const [disclaimerAcknowledged, setDisclaimerAcknowledged] = useState(
+    typeof window !== "undefined"
+      ? localStorage.getItem("zmkPowerProfilerDisclaimer") === "true"
+      : false
+  );
+
+  const currentBoard =
+    board === "custom"
+      ? {
+          powerSupply: {
+            type: psuType,
+            outputVoltage: outputV,
+            quiescentMicroA: quiescentMicroA,
+            efficiency,
+          },
+          otherQuiescentMicroA: otherQuiescentMicroA,
+        }
+      : zmkBoards[board];
+
+  return (
+    <Layout
+      title={`ZMK Power Profiler`}
+      description="Estimate your keyboard's power usage and battery life on ZMK."
+    >
+      <header className={classnames("hero hero--primary", styles.heroBanner)}>
+        <div className="container">
+          <h1 className="hero__title">ZMK Power Profiler</h1>
+          <p className="hero__subtitle">
+            {"Estimate your keyboard's power usage and battery life on ZMK."}
+          </p>
+        </div>
+      </header>
+      <main>
+        <section className="container">
+          <div className="profilerSection">
+            <h3>Keyboard Specifications</h3>
+            <div className="row">
+              <div className="col col--4">
+                <div className="profilerInput">
+                  <label>Board</label>
+                  <select {...bindBoard}>
+                    <option hidden value="">
+                      Select a board
+                    </option>
+                    {Object.keys(zmkBoards).map((b) => (
+                      <option key={b}>{b}</option>
+                    ))}
+                    <option value="custom">Custom</option>
+                  </select>
+                </div>
+              </div>
+              <div className="col col--4">
+                <div className="profilerInput">
+                  <label>Split Keyboard</label>
+                  <input
+                    id="split"
+                    checked={split}
+                    {...bindSplit}
+                    className="toggleInput"
+                    type="checkbox"
+                  />
+                  <label htmlFor="split" className="toggle">
+                    <div className="toggleThumb" />
+                  </label>
+                </div>
+              </div>
+              <div className="col col--4">
+                <div className="profilerInput">
+                  <label>Battery Size</label>
+                  <div className="inputBox">
+                    <input {...bindBatteryMilliAh} type="number" />
+                    <span>mAh</span>
+                  </div>
+                </div>
+              </div>
+            </div>
+          </div>
+
+          {board === "custom" && (
+            <CustomBoardForm
+              bindPsuType={bindPsuType}
+              bindOutputV={bindOutputV}
+              bindEfficiency={bindEfficiency}
+              bindQuiescentMicroA={bindQuiescentMicroA}
+              bindOtherQuiescentMicroA={bindOtherQuiescentMicroA}
+            />
+          )}
+
+          <div className="profilerSection">
+            <h3>Usage Values</h3>
+            <div className="row">
+              <div className="col col--4">
+                <div className="profilerInput">
+                  <label>
+                    Bonded Bluetooth Profiles{" "}
+                    <span tooltip="The average number of host devices connected at once">
+                      ⓘ
+                    </span>
+                  </label>
+                  <input {...bindBondedQty} type="range" min="1" max="5" />
+                  <span>{bondedQty}</span>
+                </div>
+              </div>
+              <div className="col col--4">
+                <div className="profilerInput">
+                  <label>
+                    Percentage Asleep{" "}
+                    <span tooltip="How much time the keyboard is in deep sleep (15 min. default timeout)">
+                      ⓘ
+                    </span>
+                  </label>
+                  <input
+                    {...bindPercentAsleep}
+                    type="range"
+                    min="0"
+                    step=".1"
+                    max="1"
+                  />
+                  <span>{Math.round(percentAsleep * 100)}%</span>
+                </div>
+              </div>
+            </div>
+          </div>
+
+          <div className="profilerSection">
+            <h3>Features</h3>
+            <div className="row">
+              <div className="col col--4">
+                <div className="profilerInput">
+                  <label>RGB Underglow</label>
+                  <input
+                    checked={glowEnabled}
+                    id="glow"
+                    {...bindGlowEnabled}
+                    className="toggleInput"
+                    type="checkbox"
+                  />
+                  <label htmlFor="glow" className="toggle">
+                    <div className="toggleThumb" />
+                  </label>
+                </div>
+                {glowEnabled && (
+                  <>
+                    <div className="profilerInput">
+                      <label>LED Quantity</label>
+                      <div className="inputBox">
+                        <input {...bindGlowQuantity} type="number" />
+                      </div>
+                    </div>
+                    <div className="profilerInput">
+                      <label>Brightness</label>
+                      <input
+                        {...bindGlowBrightness}
+                        type="range"
+                        min="0"
+                        step=".01"
+                        max="1"
+                      />
+                      <span>{Math.round(glowBrightness * 100)}%</span>
+                    </div>
+                  </>
+                )}
+              </div>
+              <div className="col col--4">
+                <div className="profilerInput">
+                  <label>Display</label>
+                  <input
+                    checked={displayEnabled}
+                    id="display"
+                    {...bindDisplayEnabled}
+                    className="toggleInput"
+                    type="checkbox"
+                  />
+                  <label htmlFor="display" className="toggle">
+                    <div className="toggleThumb" />
+                  </label>
+                </div>
+                {displayEnabled && (
+                  <div className="profilerInput">
+                    <label>Display Type</label>
+                    <select {...bindDisplayType}>
+                      <option hidden selected>
+                        Select type
+                      </option>
+                      <option value="EPAPER">ePaper</option>
+                      <option value="OLED">OLED</option>
+                    </select>
+                  </div>
+                )}
+              </div>
+            </div>
+          </div>
+          {split ? (
+            <>
+              <PowerEstimate
+                board={currentBoard}
+                splitType="central"
+                batteryMilliAh={batteryMilliAh}
+                usage={{ bondedQty, percentAsleep }}
+                underglow={{ glowEnabled, glowBrightness, glowQuantity }}
+                display={{ displayEnabled, displayType }}
+              />
+              <PowerEstimate
+                board={currentBoard}
+                splitType="peripheral"
+                batteryMilliAh={batteryMilliAh}
+                usage={{ bondedQty, percentAsleep }}
+                underglow={{ glowEnabled, glowBrightness, glowQuantity }}
+                display={{ displayEnabled, displayType }}
+              />
+            </>
+          ) : (
+            <PowerEstimate
+              board={currentBoard}
+              splitType="standalone"
+              batteryMilliAh={batteryMilliAh}
+              usage={{ bondedQty, percentAsleep }}
+              underglow={{ glowEnabled, glowBrightness, glowQuantity }}
+              display={{ displayEnabled, displayType }}
+            />
+          )}
+          <div className="row">
+            <div className="col col--8 col--offset-2 profilerDisclaimer">
+              Disclaimer: {Disclaimer}
+            </div>
+          </div>
+        </section>
+      </main>
+      {!disclaimerAcknowledged && (
+        <div className="disclaimerHolder">
+          <div className="disclaimer">
+            <h3>Disclaimer</h3>
+            <p>{Disclaimer}</p>
+            <button
+              onClick={() => {
+                setDisclaimerAcknowledged(true);
+                localStorage.setItem("zmkPowerProfilerDisclaimer", true);
+              }}
+            >
+              I Understand
+            </button>
+          </div>
+        </div>
+      )}
+    </Layout>
+  );
+}
+
+export default PowerProfiler;
diff --git a/docs/src/utils/hooks.js b/docs/src/utils/hooks.js
new file mode 100644
index 0000000..b8fb27b
--- /dev/null
+++ b/docs/src/utils/hooks.js
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+import { useState } from "react";
+
+export const useInput = (initialValue) => {
+  const [value, setValue] = useState(initialValue);
+
+  return {
+    value,
+    setValue,
+    bind: {
+      value,
+      onChange: (event) => {
+        const target = event.target;
+        setValue(target.type === "checkbox" ? target.checked : target.value);
+      },
+    },
+  };
+};