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‎examples/ListCapabilities/ListCapabilities.ino

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//
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// USB Power Delivery for Arduino
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// Copyright (c) 2023 Manuel Bleichenbacher
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//
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// Licensed under MIT License
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// https://opensource.org/licenses/MIT
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//
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//
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// Lists the capabilities of the connected power supply.
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// Please see https://github.com/manuelbl/usb-pd-arduino/wiki for
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// instructions how to wire your specific board to a USB C connector.
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// For this sketch, "Sink Mode" is relevant.
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//
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#include "USBPowerDelivery.h"
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void setup() {
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Serial.begin(115200);
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PowerSink.start(handleEvent);
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}
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void loop() {
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PowerSink.poll();
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}
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void handleEvent(PDSinkEventType eventType) {
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if (eventType == PDSinkEventType::sourceCapabilitiesChanged && PowerSink.isConnected())
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listCapabilities();
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}
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void listCapabilities() {
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Serial.println("USB PD capabilities:");
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Serial.println("__Type_________Vmin____Vmax____Imax");
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for (int i = 0; i < PowerSink.numSourceCapabilities; i += 1) {
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auto cap = PowerSink.sourceCapabilities[i];
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Serial.printf(" %-9s %6d %6d %6d", getSupplyTypeName(cap.supplyType), cap.minVoltage, cap.maxVoltage, cap.maxCurrent);
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Serial.println();
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}
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Serial.println("(voltage in mV, current in mA)");
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Serial.println();
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}
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static const char* const SupplyTypeNames[] = {
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[(int)PDSupplyType::fixed] = "Fixed",
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[(int)PDSupplyType::battery] = "Battery",
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[(int)PDSupplyType::variable] = "Variable",
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[(int)PDSupplyType::pps] = "PPS",
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};
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const char* getSupplyTypeName(PDSupplyType type) {
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unsigned int arraySize = sizeof(SupplyTypeNames) / sizeof(SupplyTypeNames[0]);
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if ((unsigned int)type < arraySize)
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return SupplyTypeNames[(unsigned int)type];
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else
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return "<unknown>";
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}

‎examples/ProtocolAnalyzer/ProtocolAnalyzer.ino

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//
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// USB Power Delivery for Arduino
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// Copyright (c) 2023 Manuel Bleichenbacher
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//
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// Licensed under MIT License
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// https://opensource.org/licenses/MIT
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//
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//
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// Monitors the USB PD communication between two USB C devices
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// and prints the decoded messages.
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//
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// Please see https://github.com/manuelbl/usb-pd-arduino/wiki for
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// instructions how to wire your specific board to a USB C intermediate
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// adapter. For this sketch, "Monitor Mode" is relevant.
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//
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#include "USBPowerDelivery.h"
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void setup() {

‎examples/TriggerBoard/TriggerBoard.ino

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@@ -1,3 +1,20 @@
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//
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// USB Power Delivery for Arduino
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// Copyright (c) 2023 Manuel Bleichenbacher
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//
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// Licensed under MIT License
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// https://opensource.org/licenses/MIT
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//
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//
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// Simple trigger board selecting 12V at 1A when the power supply is
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// connected and if 12V is available.
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//
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// Please see https://github.com/manuelbl/usb-pd-arduino/wiki for
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// instructions how to wire your specific board to a USB C connector.
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// For this sketch, "Sink Mode" is relevant.
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//
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#include "USBPowerDelivery.h"
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void setup() {

‎examples/TriggerBoardAdvanced/TriggerBoardAdvanced.ino

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//
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// USB Power Delivery for Arduino
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// Copyright (c) 2023 Manuel Bleichenbacher
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//
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// Licensed under MIT License
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// https://opensource.org/licenses/MIT
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//
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//
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// Selects 12V if available, and 15V otherwise.
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// Please see https://github.com/manuelbl/usb-pd-arduino/wiki for
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// instructions how to wire your specific board to a USB C connector.
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// For this sketch, "Sink Mode" is relevant.
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//
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#include "USBPowerDelivery.h"
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void setup() {
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Serial.begin(115200);
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PowerSink.start(handleEvent);
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}
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void loop() {
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PowerSink.poll();
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}
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void handleEvent(PDSinkEventType eventType) {
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if (eventType == PDSinkEventType::sourceCapabilitiesChanged) {
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// source capabilities have changed
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if (PowerSink.isConnected()) {
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// USB PD supply is connected
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requestVoltage();
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} else {
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// no supply or no USB PD capable supply is connected
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PowerSink.requestPower(5000); // reset to 5V
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}
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} else if (eventType == PDSinkEventType::voltageChanged) {
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// voltage has changed
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if (PowerSink.activeVoltage != 0) {
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Serial.printf("Voltage: %d mV @ %d mA (max)", PowerSink.activeVoltage, PowerSink.activeCurrent);
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Serial.println();
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} else {
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Serial.println("Disconnected");
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}
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} else if (eventType == PDSinkEventType::powerRejected) {
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// rare case: power supply rejected requested power
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Serial.println("Power request rejected");
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Serial.printf("Voltage: %d mV @ %d mA (max)", PowerSink.activeVoltage, PowerSink.activeCurrent);
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}
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}
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void requestVoltage() {
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// check if 12V is supported
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for (int i = 0; i < PowerSink.numSourceCapabilities; i += 1) {
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if (PowerSink.sourceCapabilities[i].minVoltage <= 12000
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&& PowerSink.sourceCapabilities[i].maxVoltage >= 12000) {
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PowerSink.requestPower(12000);
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return;
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}
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}
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// check if 15V is supported
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for (int i = 0; i < PowerSink.numSourceCapabilities; i += 1) {
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if (PowerSink.sourceCapabilities[i].minVoltage <= 15000
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&& PowerSink.sourceCapabilities[i].maxVoltage >= 15000) {
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PowerSink.requestPower(15000);
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return;
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}
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}
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Serial.println("Neither 12V nor 15V is supported");
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}
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‎library.json

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{
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"$schema": "https://raw.githubusercontent.com/platformio/platformio-core/develop/platformio/assets/schema/library.json",
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"name": "USBPowerDelivery",
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"version": "1.0.1",
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"version": "1.0.2",
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"description": "USB Power Delivery for Arduino. Create a USB PD protocol analyzer, trigger board or power sink for no or only few additional components. Supports several STM32 boards.",
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"keywords": "usb,usb-pd,usb-power-delivery,protocol-analyzer,trigger-board",
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"homepage": "https://github.com/manuelbl/usb-pd-arduino",
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"name": "Trigger Board",
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"base": "examples/TriggerBoard",
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"files": [ "TriggerBoard.ino" ]
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},
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{
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"name": "Trigger Board Advanced",
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"base": "examples/TriggerBoardAdvanced",
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"files": [ "TriggerBoardAdvanced.ino" ]
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},
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{
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"name": "List Capabilities",
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"base": "examples/ListCapabilities",
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"files": [ "ListCapabilities.ino" ]
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}
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]
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}

‎library.properties

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name=USBPowerDelivery
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version=1.0.1
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version=1.0.2
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author=Manuel Bl. <manuel.bleichenbacher@gmail.com>
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maintainer=Manuel Bl. <manuel.bleichenbacher@gmail.com>
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sentence=USB Power Delivery for Arduino.

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