MeshCore/variants/xiao_nrf52/XiaoNrf52Board.cpp
Frieder Schrempf c76d337a00
variants: XIAO NRF52: Enable user button
The Xiao nRF52840 combined with the Wio-SX1262 is often used for
cheap and compact DIY companion nodes. The Wio actually has an onboard
pushbutton that can be used as user button. Enable support for the
button.

Signed-off-by: Frieder Schrempf <frieder@fris.de>
2025-11-22 15:05:06 +01:00

96 lines
No EOL
2.7 KiB
C++

#ifdef XIAO_NRF52
#include <Arduino.h>
#include <Wire.h>
#include <bluefruit.h>
#include "XiaoNrf52Board.h"
static BLEDfu bledfu;
static void connect_callback(uint16_t conn_handle) {
(void)conn_handle;
MESH_DEBUG_PRINTLN("BLE client connected");
}
static void disconnect_callback(uint16_t conn_handle, uint8_t reason) {
(void)conn_handle;
(void)reason;
MESH_DEBUG_PRINTLN("BLE client disconnected");
}
void XiaoNrf52Board::begin() {
// for future use, sub-classes SHOULD call this from their begin()
startup_reason = BD_STARTUP_NORMAL;
NRF_POWER->DCDCEN = 1;
pinMode(PIN_VBAT, INPUT);
pinMode(VBAT_ENABLE, OUTPUT);
digitalWrite(VBAT_ENABLE, HIGH);
#ifdef PIN_USER_BTN
pinMode(PIN_USER_BTN, INPUT);
#endif
#if defined(PIN_WIRE_SDA) && defined(PIN_WIRE_SCL)
Wire.setPins(PIN_WIRE_SDA, PIN_WIRE_SCL);
#endif
Wire.begin();
#ifdef P_LORA_TX_LED
pinMode(P_LORA_TX_LED, OUTPUT);
digitalWrite(P_LORA_TX_LED, HIGH);
#endif
// pinMode(SX126X_POWER_EN, OUTPUT);
// digitalWrite(SX126X_POWER_EN, HIGH);
delay(10); // give sx1262 some time to power up
}
bool XiaoNrf52Board::startOTAUpdate(const char *id, char reply[]) {
// Config the peripheral connection with maximum bandwidth
// more SRAM required by SoftDevice
// Note: All config***() function must be called before begin()
Bluefruit.configPrphBandwidth(BANDWIDTH_MAX);
Bluefruit.configPrphConn(92, BLE_GAP_EVENT_LENGTH_MIN, 16, 16);
Bluefruit.begin(1, 0);
// Set max power. Accepted values are: -40, -30, -20, -16, -12, -8, -4, 0, 4
Bluefruit.setTxPower(4);
// Set the BLE device name
Bluefruit.setName("XIAO_NRF52_OTA");
Bluefruit.Periph.setConnectCallback(connect_callback);
Bluefruit.Periph.setDisconnectCallback(disconnect_callback);
// To be consistent OTA DFU should be added first if it exists
bledfu.begin();
// Set up and start advertising
// Advertising packet
Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);
Bluefruit.Advertising.addTxPower();
Bluefruit.Advertising.addName();
/* Start Advertising
- Enable auto advertising if disconnected
- Interval: fast mode = 20 ms, slow mode = 152.5 ms
- Timeout for fast mode is 30 seconds
- Start(timeout) with timeout = 0 will advertise forever (until connected)
For recommended advertising interval
https://developer.apple.com/library/content/qa/qa1931/_index.html
*/
Bluefruit.Advertising.restartOnDisconnect(true);
Bluefruit.Advertising.setInterval(32, 244); // in unit of 0.625 ms
Bluefruit.Advertising.setFastTimeout(30); // number of seconds in fast mode
Bluefruit.Advertising.start(0); // 0 = Don't stop advertising after n seconds
strcpy(reply, "OK - started");
return true;
}
#endif