nomad tx

mLRS/Common/hal/esp/esp-device_conf.h

@@ -218,6 +218,14 @@
   #define FREQUENCY_BAND_915_MHZ_FCC
 #endif
 
+#ifdef TX_ELRS_RADIOMASTER_NOMAD_900_ESP32
+  #define DEVICE_NAME "RM Nomad 900"
+  #define DEVICE_IS_TRANSMITTER
+  #define DEVICE_HAS_LR11xx
+  #define FREQUENCY_BAND_868_MHZ
+  #define FREQUENCY_BAND_915_MHZ_FCC
+#endif
+
 
 // -- DIY
 

mLRS/Common/hal/esp/esp-hal.h

@@ -127,6 +127,10 @@
 #include "tx-hal-radiomaster-bandit-series-900-esp32.h"
 #endif
 
+#ifdef TX_ELRS_RADIOMASTER_NOMAD_900_ESP32
+#include "tx-hal-radiomaster-nomad-900-esp32.h"
+#endif
+
 
 // -- DIY
 

mLRS/Common/hal/esp/tx-hal-radiomaster-nomad-900-esp32.h

@@ -0,0 +1,352 @@
+//*******************************************************
+// Copyright (c) MLRS project
+// GPL3
+// https://www.gnu.org/licenses/gpl-3.0.de.html
+//*******************************************************
+// hal
+//*******************************************************
+
+//-------------------------------------------------------
+// ESP32, Radiomaster Tx Nomad
+//-------------------------------------------------------
+
+// https://github.com/ExpressLRS/targets/blob/master/TX/Radiomaster%20Nomad.json
+
+#define DEVICE_HAS_JRPIN5
+#define DEVICE_HAS_NO_DEBUG
+#define DEVICE_HAS_DIVERSITY_SINGLE_SPI
+#define DEVICE_HAS_SINGLE_LED_RGB
+#define DEVICE_HAS_SERIAL_OR_COM
+#define DEVICE_HAS_FAN_ONOFF
+#define DEVICE_HAS_ESP_WIFI_BRIDGE_ON_SERIAL2
+#define DEVICE_HAS_ESP_WIFI_BRIDGE_CONFIGURE  // requires backpack firmware to have AT mode enabled
+
+
+//-- UARTS
+// UARTB = serial port 
+// UARTC = COM (CLI)
+// UARTD = serial2 BT/ESP port
+// UART  = JR bay pin5
+// UARTE = in port, SBus or whatever
+// UARTF = debug port
+
+#define UARTB_USE_SERIAL // serial, is connected to USB-C via USB<>UART
+#define UARTB_BAUD                TX_SERIAL_BAUDRATE
+#define UARTB_USE_TX_IO           IO_P1
+#define UARTB_USE_RX_IO           IO_P3
+#define UARTB_TXBUFSIZE           TX_SERIAL_TXBUFSIZE
+#define UARTB_RXBUFSIZE           TX_SERIAL_RXBUFSIZE
+
+#define UARTC_USE_SERIAL // COM (CLI), is connected to USB-C via USB<>UART
+#define UARTC_BAUD                115200
+#define UARTC_USE_TX_IO           IO_P1
+#define UARTC_USE_RX_IO           IO_P3
+#define UARTC_TXBUFSIZE           0  // TX FIFO = 128
+#define UARTC_RXBUFSIZE           TX_COM_RXBUFSIZE
+
+#define UART_USE_SERIAL1 // JR bay pin5
+#define UART_BAUD                 400000
+#define UART_USE_TX_IO            IO_P4
+#define UART_USE_RX_IO            IO_P4
+#define UART_TXBUFSIZE            0  // TX FIFO = 128
+#define UART_RXBUFSIZE            0  // RX FIFO = 128 + 1
+
+#define UARTD_USE_SERIAL2 // serial2, connected to ESP32C3 backpack
+#define UARTD_BAUD                TX_SERIAL_BAUDRATE
+#define UARTD_USE_TX_IO           IO_P5
+#define UARTD_USE_RX_IO           IO_P18
+#define UARTD_TXBUFSIZE           TX_SERIAL_TXBUFSIZE
+#define UARTD_RXBUFSIZE           TX_SERIAL_RXBUFSIZE
+
+
+//-- SX1: LR11xx & SPI
+
+#define SPI_CS_IO                 IO_P27
+#define SPI_MISO                  IO_P33
+#define SPI_MOSI                  IO_P32
+#define SPI_SCK                   IO_P25
+#define SPI_FREQUENCY             16000000L
+#define SX_RESET                  IO_P15
+#define SX_BUSY                   IO_P36
+#define SX_DIO1                   IO_P37
+
+#define SX_USE_REGULATOR_MODE_DCDC
+
+IRQHANDLER(void SX_DIO_EXTI_IRQHandler(void);)
+
+void sx_init_gpio(void)
+{
+    gpio_init(SX_DIO1, IO_MODE_INPUT_ANALOG);
+    gpio_init(SX_BUSY, IO_MODE_INPUT_ANALOG);
+    gpio_init(SX_RESET, IO_MODE_OUTPUT_PP_LOW);
+}
+
+IRAM_ATTR bool sx_busy_read(void) { return (gpio_read_activehigh(SX_BUSY)) ? true : false; }
+
+IRAM_ATTR void sx_amp_transmit(void) {}
+
+IRAM_ATTR void sx_amp_receive(void) {}
+
+void sx_dio_enable_exti_isr(void) { attachInterrupt(SX_DIO1, SX_DIO_EXTI_IRQHandler, RISING); }
+
+void sx_dio_init_exti_isroff(void) { detachInterrupt(SX_DIO1); }
+
+void sx_dio_exti_isr_clearflag(void) {}
+
+
+//-- SX2: LR11xx & SPI
+
+#define SX2_CS_IO                 IO_P13
+#define SX2_BUSY                  IO_P39
+#define SX2_DIO1                  IO_P34
+#define SX2_RESET                 IO_P21
+
+#define SX2_USE_REGULATOR_MODE_DCDC
+
+IRQHANDLER(void SX2_DIO_EXTI_IRQHandler(void);)
+
+void sx2_init_gpio(void)
+{
+    gpio_init(SX2_CS_IO, IO_MODE_OUTPUT_PP_HIGH);
+    gpio_init(SX2_DIO1, IO_MODE_INPUT_ANALOG);
+    gpio_init(SX2_BUSY, IO_MODE_INPUT_ANALOG);
+    gpio_init(SX2_RESET, IO_MODE_OUTPUT_PP_LOW);
+}
+
+#define SX2_USE_REGULATOR_MODE_DCDC
+
+IRAM_ATTR void spib_select(void) { gpio_low(SX2_CS_IO); }
+
+IRAM_ATTR void spib_deselect(void) { gpio_high(SX2_CS_IO); }
+
+IRAM_ATTR bool sx2_busy_read(void) { return (gpio_read_activehigh(SX2_BUSY)) ? true : false; }
+
+IRAM_ATTR void sx2_amp_transmit(void) {}
+
+IRAM_ATTR void sx2_amp_receive(void) {}
+
+void sx2_dio_init_exti_isroff(void) { detachInterrupt(SX2_DIO1); }
+
+void sx2_dio_enable_exti_isr(void) { attachInterrupt(SX2_DIO1, SX2_DIO_EXTI_IRQHandler, RISING); }
+
+void sx2_dio_exti_isr_clearflag(void) {}
+
+
+//-- Button
+
+#define BUTTON                    IO_P14
+#define BUTTON2                   IO_P12
+
+void button_init(void)
+{ 
+    gpio_init(BUTTON, IO_MODE_INPUT_PU);
+    gpio_init(BUTTON2, IO_MODE_INPUT_PU);
+}
+
+IRAM_ATTR bool button_pressed(void) { return (gpio_read_activelow(BUTTON) || gpio_read_activelow(BUTTON2)) ? true : false; }
+
+
+//-- LEDs
+
+#define LED_RGB                   IO_P22
+
+#include <NeoPixelBus.h>
+bool ledRedState;
+bool ledGreenState;
+bool ledBlueState;
+
+uint8_t pixelNum = 2;
+
+NeoPixelBus<NeoGrbFeature, NeoEsp32I2s0Ws2812xMethod> ledRGB(pixelNum, LED_RGB);
+
+void leds_init(void)
+{
+    ledRGB.Begin();
+    ledRGB.Show();
+}
+
+IRAM_ATTR void led_red_off(void)
+{
+    if (!ledRedState) return;
+    ledRGB.SetPixelColor(0, RgbColor(0, 0, 0));
+    ledRGB.SetPixelColor(1, RgbColor(0, 0, 0));
+    ledRGB.Show();
+    ledRedState = 0;
+}
+
+IRAM_ATTR void led_red_on(void)
+{
+    if (ledRedState) return;
+    ledRGB.SetPixelColor(0, RgbColor(255, 0, 0));
+    ledRGB.SetPixelColor(1, RgbColor(255, 0, 0));
+    ledRGB.Show();
+    ledRedState = 1;
+}
+
+IRAM_ATTR void led_red_toggle(void)
+{
+    if (ledRedState) { led_red_off(); } else { led_red_on(); }
+}
+
+IRAM_ATTR void led_green_off(void)
+{
+    if (!ledGreenState) return;
+    ledRGB.SetPixelColor(0, RgbColor(0, 0, 0));
+    ledRGB.SetPixelColor(1, RgbColor(0, 0, 0));
+    ledRGB.Show();
+    ledGreenState = 0;
+}
+
+IRAM_ATTR void led_green_on(void)
+{
+    if (ledGreenState) return;
+    ledRGB.SetPixelColor(0, RgbColor(0, 255, 0));
+    ledRGB.SetPixelColor(1, RgbColor(0, 255, 0));
+    ledRGB.Show();
+    ledGreenState = 1;
+}
+
+IRAM_ATTR void led_green_toggle(void)
+{
+    if (ledGreenState) { led_green_off(); } else { led_green_on(); }
+}
+
+IRAM_ATTR void led_blue_off(void)
+{
+    if (!ledBlueState) return;
+    ledRGB.SetPixelColor(0, RgbColor(0, 0, 0));
+    ledRGB.SetPixelColor(1, RgbColor(0, 0, 0));
+    ledRGB.Show();
+    ledBlueState = 0;
+}
+
+IRAM_ATTR void led_blue_on(void)
+{
+    if (ledBlueState) return;
+    ledRGB.SetPixelColor(0, RgbColor(0, 0, 255));
+    ledRGB.SetPixelColor(1, RgbColor(0, 0, 255));
+    ledRGB.Show();
+    ledBlueState = 1;
+}
+
+IRAM_ATTR void led_blue_toggle(void)
+{
+    if (ledBlueState) { led_blue_off(); } else { led_blue_on(); }
+}
+
+
+//-- Serial or Com Switch
+
+#ifdef DEVICE_HAS_SERIAL_OR_COM
+
+bool tx_ser_or_com_serial = true; // default is serial
+
+void ser_or_com_init(void)
+{
+    gpio_init(BUTTON, IO_MODE_INPUT_PU);
+    gpio_init(BUTTON2, IO_MODE_INPUT_PU);
+    uint8_t cnt = 0;
+    for (uint8_t i = 0; i < 16; i++) {
+        if (gpio_read_activelow(BUTTON) || gpio_read_activelow(BUTTON2)) cnt++;
+    }
+    tx_ser_or_com_serial = !(cnt > 8);
+}
+
+IRAM_ATTR bool ser_or_com_serial(void) { return tx_ser_or_com_serial; }
+
+IRAM_ATTR void ser_or_com_set_to_com(void) { tx_ser_or_com_serial = false; }
+
+#endif // DEVICE_HAS_SERIAL_OR_COM
+
+
+//-- Cooling Fan
+
+#define FAN_IO                    IO_P2
+
+void fan_init(void) { gpio_init(FAN_IO, IO_MODE_OUTPUT_PP_LOW); }
+
+IRAM_ATTR void fan_set_power(int8_t power_dbm)
+{
+    if (power_dbm >= POWER_23_DBM) { gpio_high(FAN_IO); } 
+    else { gpio_low(FAN_IO); }
+}
+
+
+//-- ESP32 Wifi Bridge
+
+#ifdef DEVICE_HAS_ESP_WIFI_BRIDGE_ON_SERIAL2  // this is an ESP32C3
+
+#define ESP_RESET                 IO_P19 // backpack_en
+#define ESP_GPIO0                 IO_P23 // backpack_boot
+#define ESP_BOOT0                 IO_P0  // will always be IO_P0
+
+uint8_t esp_boot0() { return gpio_read_activelow(ESP_BOOT0); }
+
+void esp_init(void)
+{
+    gpio_init(ESP_RESET, IO_MODE_OUTPUT_PP_LOW); // low -> esp is in reset
+    gpio_init(ESP_GPIO0, IO_MODE_OUTPUT_PP_LOW); // high -> esp will start in bootloader mode
+    // no need to configure ESP_BOOT0 which will always be IO_P0 and is pull-up by default
+}
+
+IRAM_ATTR void esp_reset_high(void) { gpio_high(ESP_RESET); }
+IRAM_ATTR void esp_reset_low(void) { gpio_low(ESP_RESET); }
+
+IRAM_ATTR void esp_gpio0_high(void) { gpio_low(ESP_GPIO0); }
+IRAM_ATTR void esp_gpio0_low(void) { gpio_high(ESP_GPIO0); }
+
+#endif // DEVICE_HAS_ESP_WIFI_BRIDGE_ON_SERIAL2 
+
+
+//-- POWER
+
+#define SX_USE_LP_PA  // Nomad uses the low power amplifier for the 900 side
+
+void lr11xx_rfpower_calc(const int8_t power_dbm, uint8_t* sx_power, int8_t* actual_power_dbm)
+{
+    uint8_t dac = 120;
+
+    if (power_dbm > 28) { // -> 30
+        dac = 95;
+        *sx_power = 5;
+        *actual_power_dbm = 30;
+    } else if (power_dbm > 25) { // -> 27
+        dac = 120;
+        *sx_power = -3;
+        *actual_power_dbm = 27;
+    } else if (power_dbm > 22) { // -> 24
+        dac = 120;
+        *sx_power = -7;
+        *actual_power_dbm = 24;
+    } else if (power_dbm > 18) { // -> 20
+        dac = 120;
+        *sx_power = -11;
+        *actual_power_dbm = 20;
+    } else if (power_dbm > 15) { // -> 17
+        dac = 120;
+        *sx_power = -14;
+        *actual_power_dbm = 17;
+    } else if (power_dbm > 12) { // -> 14
+        dac = 120;
+        *sx_power = -16;
+        *actual_power_dbm = 14;
+    } else {
+        dac = 150;
+        *sx_power = -17;
+        *actual_power_dbm = 10; // measures about 11 dBm
+    }
+
+    dacWrite(IO_P26, dac);
+}
+
+#define RFPOWER_DEFAULT           0 // index into rfpower_list array
+
+const rfpower_t rfpower_list[] = {
+    { .dbm = POWER_10_DBM, .mW = 10 },
+    { .dbm = POWER_14_DBM, .mW = 25 },
+    //{ .dbm = POWER_17_DBM, .mW = 50 }, // 6 power levels allowed
+    { .dbm = POWER_20_DBM, .mW = 100 },
+    { .dbm = POWER_24_DBM, .mW = 250 },
+    { .dbm = POWER_27_DBM, .mW = 500 },
+    { .dbm = POWER_30_DBM, .mW = 1000 },
+};

platformio.ini

@@ -365,6 +365,19 @@ build_src_filter =
 build_flags = 
   ${env_common_tx_esp32.build_flags}
   -D TX_ELRS_RADIOMASTER_BANDIT_900_ESP32
+
+
+[env:tx-radiomaster-nomad-900]
+extends = env_common_tx_esp32
+board = esp32dev
+lib_deps = 
+  makuna/NeoPixelBus@^2.8.3
+build_src_filter = 
+  ${env_common_tx_esp32.build_src_filter}
+  +<modules/sx12xx-lib/src/lr11xx.cpp>
+build_flags = 
+  ${env_common_tx_esp32.build_flags}
+  -D TX_ELRS_RADIOMASTER_NOMAD_900_ESP32
 
 
 ;-- some ELRS Tx, Internal Modules