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+/*
+ * 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)
+  },
+};