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Add in RF95 support to Pro-micro DIY (#5055)
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* Add in RF95 support

Added in lines to enable RF95 modules. Tested on SX1262 by NomDeTom/ @Nestpebble . Tested with RA02 by Ludovic / @lboue

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@NomDeTom
NomDeTom authored Oct 14, 2024
1 parent 655e58f commit 89c1e04
Showing 1 changed file with 52 additions and 34 deletions.
86 changes: 52 additions & 34 deletions variants/diy/nrf52_promicro_diy_tcxo/variant.h
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Original file line number Diff line number Diff line change
Expand Up @@ -22,26 +22,26 @@ extern "C" {
/*
NRF52 PRO MICRO PIN ASSIGNMENT
| Pin | Function | | Pin | Function |
|-------|------------|---|---------|-------------|
| Gnd | | | vbat | |
| P0.06 | Serial2 RX | | vbat | |
| P0.08 | Serial2 TX | | Gnd | |
| Gnd | | | reset | |
| Gnd | | | ext_vcc | *see 0.13 |
| P0.17 | RXEN | | P0.31 | BATTERY_PIN |
| P0.20 | GPS_RX | | P0.29 | BUSY |
| P0.22 | GPS_TX | | P0.02 | MISO |
| P0.24 | GPS_EN | | P1.15 | MOSI |
| P1.00 | BUTTON_PIN | | P1.13 | CS |
| P0.11 | SCL | | P1.11 | SCK |
| P1.04 | SDA | | P0.10 | DIO1/IRQ |
| P1.06 | Free pin | | P0.09 | RESET |
| | | | | |
| | Mid board | | | Internal |
| P1.01 | Free pin | | 0.15 | LED |
| P1.02 | Free pin | | 0.13 | 3V3_EN |
| P1.07 | Free pin | | | |
| Pin   | Function   |   | Pin     | Function     | RF95 |
| ----- | ----------- | --- | -------- | ------------ | ----- |
| Gnd   |             |   | vbat     |             | |
| P0.06 | Serial2 RX |   | vbat     |             | |
| P0.08 | Serial2 TX |   | Gnd     |             | |
| Gnd   |             |   | reset   |             | |
| Gnd   |             |   | ext_vcc | *see 0.13   | |
| P0.17 | RXEN       |   | P0.31   | BATTERY_PIN | |
| P0.20 | GPS_RX     |   | P0.29   | BUSY         | DIO0 |
| P0.22 | GPS_TX     |   | P0.02   | MISO | MISO |
| P0.24 | GPS_EN     |   | P1.15   | MOSI         | MOSI |
| P1.00 | BUTTON_PIN |   | P1.13   | CS           | CS   |
| P0.11 | SCL         |   | P1.11   | SCK         | SCK |
| P1.04 | SDA         |   | P0.10   | DIO1/IRQ     | DIO1 |
| P1.06 | Free pin   |   | P0.09   | RESET       | RST |
|       |             |   |         |             | |
|       | Mid board   |   |         | Internal     | |
| P1.01 | Free pin   |   | 0.15     | LED         | |
| P1.02 | Free pin   |   | 0.13     | 3V3_EN       | |
| P1.07 | Free pin   |   |         |             | |
*/

// Number of pins defined in PinDescription array
Expand Down Expand Up @@ -112,13 +112,28 @@ NRF52 PRO MICRO PIN ASSIGNMENT
#define PIN_SPI_MOSI (32 + 15) // P1.15
#define PIN_SPI_SCK (32 + 11) // P1.11

#define LORA_MISO PIN_SPI_MISO
#define LORA_MOSI PIN_SPI_MOSI
#define LORA_SCK PIN_SPI_SCK
#define LORA_CS (32 + 13) // P1.13

// LORA MODULES
#define USE_LLCC68
#define USE_SX1262
// #define USE_RF95
#define USE_RF95
#define USE_SX1268

// LORA CONFIG
// RF95 CONFIG

#define LORA_DIO0 (0 + 29) // P0.10 IRQ
#define LORA_DIO1 (0 + 10) // P0.10 IRQ
#define LORA_RESET (0 + 9) // P0.09

// RX/TX for RFM95/SX127x
#define RF95_RXEN (0 + 17) // P0.17
#define RF95_TXEN RADIOLIB_NC // Assuming that DIO2 is connected to TXEN pin. If not, TXEN must be connected.

// SX126X CONFIG
#define SX126X_CS (32 + 13) // P1.13 FIXME - we really should define LORA_CS instead
#define SX126X_DIO1 (0 + 10) // P0.10 IRQ
#define SX126X_DIO2_AS_RF_SWITCH // Note for E22 modules: DIO2 is not attached internally to TXEN for automatic TX/RX switching,
Expand All @@ -134,18 +149,21 @@ NRF52 PRO MICRO PIN ASSIGNMENT
On the SX1262, DIO3 sets the voltage for an external TCXO, if one is present. If one is not present, use TCXO_OPTIONAL to try both
settings.
| Mfr | Module | TCXO | RF Switch | Notes |
| ---------- | ---------------- | ---- | --------- | -------------------------------------------- |
| Ebyte | E22-900M22S | Yes | Ext | |
| Ebyte | E22-900MM22S | No | Ext | |
| Ebyte | E22-900M30S | Yes | Ext | |
| Ebyte | E22-900M33S | Yes | Ext | MAX_POWER must be set to 8 for this |
| Ebyte | E220-900M22S | No | Ext | LLCC68, looks like DIO3 not connected at all |
| AI-Thinker | RA-01SH | No | Int | |
| Heltec | HT-RA62 | Yes | Int | |
| NiceRF | Lora1262 | yes | Int | |
| Waveshare | Core1262-HF | yes | Ext | |
| Waveshare | LoRa Node Module | yes | Int | |
| Mfr | Module | TCXO | RF Switch | Notes |
| ------------ | ---------------- | ---- | --------- | ------------------------------------- |
| Ebyte | E22-900M22S | Yes | Ext | |
| Ebyte | E22-900MM22S | No | Ext | |
| Ebyte | E22-900M30S | Yes | Ext | |
| Ebyte | E22-900M33S | Yes | Ext | MAX_POWER must be set to 8 for this |
| Ebyte | E220-900M22S | No | Ext | LLCC68, looks like DIO3 not connected |
| AI-Thinker | RA-01SH | No | Int | SX1262 |
| Heltec | HT-RA62 | Yes | Int | |
| NiceRF | Lora1262 | yes | Int | |
| Waveshare | Core1262-HF | yes | Ext | |
| Waveshare | LoRa Node Module | yes | Int | |
| Seeed | Wio-SX1262 | yes | Int | Sooooo cute! |
| AI-Thinker | RA-02 | No | Int | SX1278 **433mhz band only** |
| RF Solutions | RFM95 | No | Int | Untested |
*/

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