Added Support for the LilyGo TBeam v1.2 SX1276

src/helpers/TBeamBoard.h

@@ -0,0 +1,104 @@
+#pragma once
+
+// Defined using AXP2102
+#define XPOWERS_CHIP_AXP2101
+
+#include <Wire.h>
+#include <Arduino.h>
+#include "XPowersLib.h"
+
+#ifndef CONFIG_PMU_SDA
+#define CONFIG_PMU_SDA 21
+#endif
+
+#ifndef CONFIG_PMU_SCL
+#define CONFIG_PMU_SCL 22
+#endif
+
+#ifndef CONFIG_PMU_IRQ
+#define CONFIG_PMU_IRQ 35
+#endif
+
+bool  pmu_flag = 0;
+XPowersPMU power;
+
+const uint8_t i2c_sda = CONFIG_PMU_SDA;
+const uint8_t i2c_scl = CONFIG_PMU_SCL;
+const uint8_t pmu_irq_pin = CONFIG_PMU_IRQ;
+
+void setFlag(void)
+{
+    pmu_flag = true;
+}
+
+
+
+// LoRa radio module pins for TBeam
+#define  P_LORA_DIO_0   26
+#define  P_LORA_DIO_2   32
+#define  P_LORA_DIO_1   33
+#define  P_LORA_NSS     18
+#define  P_LORA_RESET   14
+#define  P_LORA_BUSY    RADIOLIB_NC
+#define  P_LORA_SCLK     5
+#define  P_LORA_MISO    19
+#define  P_LORA_MOSI    27
+
+// built-ins
+//#define  PIN_VBAT_READ   37
+//#define  PIN_LED_BUILTIN 25
+
+#include "ESP32Board.h"
+
+#include <driver/rtc_io.h>
+
+class TBeamBoard : public ESP32Board {
+public:
+  void begin() {
+    ESP32Board::begin();
+    power.setALDO2Voltage(3300);
+    power.enableALDO2();
+
+    esp_reset_reason_t reason = esp_reset_reason();
+    if (reason == ESP_RST_DEEPSLEEP) {
+      long wakeup_source = 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;
+      }
+
+      rtc_gpio_hold_dis((gpio_num_t)P_LORA_NSS);
+      rtc_gpio_deinit((gpio_num_t)P_LORA_DIO_1);
+    }
+  }
+
+  void enterDeepSleep(uint32_t secs, int pin_wake_btn = -1) {
+    esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
+
+    // Make sure the DIO1 and NSS GPIOs are hold on required levels during deep sleep
+    rtc_gpio_set_direction((gpio_num_t)P_LORA_DIO_1, RTC_GPIO_MODE_INPUT_ONLY);
+    rtc_gpio_pulldown_en((gpio_num_t)P_LORA_DIO_1);
+
+    rtc_gpio_hold_en((gpio_num_t)P_LORA_NSS);
+
+    if (pin_wake_btn < 0) {
+      esp_sleep_enable_ext1_wakeup( (1L << P_LORA_DIO_1), ESP_EXT1_WAKEUP_ANY_HIGH);  // wake up on: recv LoRa packet
+    } else {
+      esp_sleep_enable_ext1_wakeup( (1L << P_LORA_DIO_1) | (1L << pin_wake_btn), ESP_EXT1_WAKEUP_ANY_HIGH);  // wake up on: recv LoRa packet OR wake btn
+    }
+
+    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!
+  }
+
+  uint16_t getBattMilliVolts() override {
+    return 0;
+  }
+
+  const char* getManufacturerName() const override {
+    return "LilyGo T-Beam";
+  }
+};