* new targets: Xiao_C3_repeater_sx1262, _sx1268

src/Mesh.h

@@ -92,8 +92,6 @@ protected:
   */
   virtual void onPeerPathRecv(Packet* packet, int sender_idx, const uint8_t* secret, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) { }
 
-  virtual int searchChannelsByHash(const uint8_t* hash, GroupChannel channels[], int max_matches);
-
   /**
    * \brief  A new incoming Advertisement has been received.
    *         NOTE: these can be received multiple times (per id/timestamp), via different routes
@@ -114,6 +112,13 @@ protected:
   */
   virtual void onPathRecv(Packet* packet, Identity& sender, uint8_t* path, uint8_t path_len, uint8_t extra_type, uint8_t* extra, uint8_t extra_len) { }
 
+  /**
+   * \brief  Perform search of local DB of matching GroupChannels.
+   * \param  channels  OUT - store matching channels in this array, up to max_matches
+   * \returns  Number of channels with matching hash
+   */
+  virtual int searchChannelsByHash(const uint8_t* hash, GroupChannel channels[], int max_matches);
+
   /**
    * \brief  An encrypted group data packet has been received.
    *         NOTE: the same payload can be received multiple times, via different routes

src/helpers/RadioLibWrappers.h

@@ -21,8 +21,8 @@ public:
 
   uint32_t getPacketsRecv() const { return n_recv; }
   uint32_t getPacketsSent() const { return n_sent; }
-  float getLastRSSI() const override;
-  float getLastSNR() const override;
+  virtual float getLastRSSI() const override;
+  virtual float getLastSNR() const override;
 };
 
 /**

src/helpers/XiaoC3Board.h

@@ -0,0 +1,121 @@
+#pragma once
+
+#include <helpers/ESP32Board.h>
+#include <Arduino.h>
+
+// LoRa radio module pins for custom Seeduino XiaoC3 build
+// #define  P_LORA_SCLK     D8
+// #define  P_LORA_MISO     D9
+// #define  P_LORA_MOSI    D10
+
+#include <driver/rtc_io.h>
+#include <driver/uart.h>
+
+class XiaoC3Board : public ESP32Board {
+  uint8_t startup_reason;
+public:
+  void begin() {
+    startup_reason = BD_STARTUP_NORMAL;
+    ESP32Board::begin();
+
+    esp_reset_reason_t reason = esp_reset_reason();
+    if (reason == ESP_RST_DEEPSLEEP) {
+      long wakeup_source = esp_sleep_get_gpio_wakeup_status(); //  esp_sleep_get_ext1_wakeup_status();
+      if (wakeup_source & (1 << P_LORA_DIO_1)) {  // received a LoRa packet (while in deep sleep)
+        startup_reason = BD_STARTUP_RX_PACKET;
+      }
+
+  #if defined(LORA_TX_BOOST_PIN)
+      gpio_hold_dis((gpio_num_t) LORA_TX_BOOST_PIN);
+      gpio_deep_sleep_hold_dis();
+  #endif
+    }
+
+  #ifdef PIN_VBAT_READ
+    // battery read support
+    pinMode(PIN_VBAT_READ, INPUT);
+  #endif
+
+  #ifdef LORA_TX_BOOST_PIN
+    pinMode(LORA_TX_BOOST_PIN, OUTPUT);
+    digitalWrite(LORA_TX_BOOST_PIN, HIGH);
+  #endif
+
+  #ifdef P_LORA_TX_LED
+    pinMode(P_LORA_TX_LED, OUTPUT);
+    digitalWrite(P_LORA_TX_LED, LOW);
+  #endif
+  }
+
+  uint8_t getStartupReason() const { return startup_reason; }
+
+  void enterDeepSleep(uint32_t secs, int8_t wake_pin = -1) {
+    gpio_set_direction(gpio_num_t(P_LORA_DIO_1), GPIO_MODE_INPUT);
+    if (wake_pin >= 0) {
+      gpio_set_direction((gpio_num_t)wake_pin, GPIO_MODE_INPUT);
+    }
+
+    //hold disable, isolate and power domain config functions may be unnecessary
+    //gpio_deep_sleep_hold_dis();
+    //esp_sleep_config_gpio_isolate();
+    gpio_deep_sleep_hold_en();
+
+#if defined(LORA_TX_BOOST_PIN)
+    gpio_hold_en((gpio_num_t) LORA_TX_BOOST_PIN);
+    gpio_deep_sleep_hold_en();
+#endif
+    esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
+
+    if (wake_pin >= 0) {
+      esp_deep_sleep_enable_gpio_wakeup((1 << P_LORA_DIO_1) | (1 << wake_pin), ESP_GPIO_WAKEUP_GPIO_HIGH);
+    } else {
+      esp_deep_sleep_enable_gpio_wakeup(1 << P_LORA_DIO_1, ESP_GPIO_WAKEUP_GPIO_HIGH);
+    }
+
+    if (secs > 0) {
+      esp_sleep_enable_timer_wakeup(secs * 1000000);
+    }
+
+    // Finally set ESP32 into sleep
+    esp_deep_sleep_start();  // CPU halts here and never returns!
+  }
+
+#if defined(LORA_TX_BOOST_PIN) || defined(P_LORA_TX_LED)
+  void onBeforeTransmit() override {
+  #if defined(P_LORA_TX_LED)
+    digitalWrite(P_LORA_TX_LED, HIGH);   // turn TX LED on
+  #endif
+  #if defined(LORA_TX_BOOST_PIN)
+    digitalWrite(LORA_TX_BOOST_PIN, LOW);
+    delay(5);
+  #endif
+  }
+  void onAfterTransmit() override {
+  #if defined(LORA_TX_BOOST_PIN)
+    digitalWrite(LORA_TX_BOOST_PIN, HIGH);
+  #endif
+  #if defined(P_LORA_TX_LED)
+    digitalWrite(P_LORA_TX_LED, LOW);   // turn TX LED off
+  #endif
+  }
+#endif
+
+  uint16_t getBattMilliVolts() override {
+  #ifdef PIN_VBAT_READ
+    analogReadResolution(10);
+    uint32_t raw = 0;
+    for (int i = 0; i < 8; i++) {
+      raw += analogRead(PIN_VBAT_READ);
+    }
+    raw = raw / 8;
+
+    return ((5.78 * raw) / 1024.0) * 1000;
+  #else
+    return 0;
+  #endif
+  }
+
+  const char* getManufacturerName() const override {
+    return "Xiao C3";
+  }
+};