/* * 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 v1", powerSupply: { type: "LDO", outputVoltage: 3.3, quiescentMicroA: 55, }, otherQuiescentMicroA: 4, }, "nice!nano v2": { name: "nice!nano v2", powerSupply: { type: "LDO", outputVoltage: 3.3, quiescentMicroA: 15, }, otherQuiescentMicroA: 3, }, "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 backlightLEDs = { White: 3.2, Blue: 3.0, Green: 2.2, Yellow: 2.1, Red: 1.8, }; export const backlightPower = { pwmPower: 510, // Estimated power consumption of PWM module }; 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) }, };