zero-node/zero-node.patch at main · so1der/zero-node · GitHub

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diff --git a/src/SerialConsole.cpp b/src/SerialConsole.cpp
index 24141be28..6e963984d 100644
--- a/src/SerialConsole.cpp
+++ b/src/SerialConsole.cpp
@@ -20,7 +20,7 @@
 #endif

 #ifdef RP2040_SLOW_CLOCK
-#define Port Serial2
+#define Port Serial1
 #else
 #ifdef USER_DEBUG_PORT // change by WayenWeng
 #define Port USER_DEBUG_PORT
diff --git a/src/mesh/RadioInterface.cpp b/src/mesh/RadioInterface.cpp
index 58bd498c5..632767f16 100644
--- a/src/mesh/RadioInterface.cpp
+++ b/src/mesh/RadioInterface.cpp
@@ -117,7 +117,7 @@ const RegionInfo regions[] = {
         https://www.etsi.org/deliver/etsi_en/300200_300299/30022002/03.02.01_60/en_30022002v030201p.pdf
         FIXME: https://github.com/meshtastic/firmware/issues/3371
      */
-    RDEF(EU_433, 433.0f, 434.0f, 10, 10, false, false, PROFILE_STD, PRESET(LONG_FAST), 0),
+    RDEF(EU_433, 433.0f, 434.0f, 10, 20, false, false, PROFILE_STD, PRESET(LONG_FAST), 0),
     /*
         https://www.thethingsnetwork.org/docs/lorawan/duty-cycle/
         https://www.thethingsnetwork.org/docs/lorawan/regional-parameters/
diff --git a/variants/rp2040/zero-node/platformio.ini b/variants/rp2040/zero-node/platformio.ini
new file mode 100644
index 000000000..2fa0a68e0
--- /dev/null
+++ b/variants/rp2040/zero-node/platformio.ini
@@ -0,0 +1,25 @@
+[env:zero-node]
+custom_meshtastic_hw_model = 47
+custom_meshtastic_hw_model_slug = ZERO-NODE
+custom_meshtastic_architecture = rp2040
+custom_meshtastic_actively_supported = true
+custom_meshtastic_support_level = 3
+custom_meshtastic_display_name = RP2040 Zero Node
+custom_meshtastic_images = pico.svg
+custom_meshtastic_tags = RPi, DIY
+custom_meshtastic_requires_dfu = true
+
+extends = rp2040_base
+board = waveshare_rp2040_zero
+board_level = pr
+upload_protocol = picotool
+# add our variants files to the include and src paths
+build_flags =
+  ${rp2040_base.build_flags}
+  -D RPI_PICO
+  -I variants/rp2040/zero-node
+  -D HW_SPI1_DEVICE
+  -D DEBUG_RP2040_PORT=Serial
+#  -D NO_USB
+debug_build_flags = ${rp2040_base.build_flags}, -g
+debug_tool = cmsis-dap ; for e.g. Picotool
diff --git a/variants/rp2040/zero-node/variant.h b/variants/rp2040/zero-node/variant.h
new file mode 100644
index 000000000..a755d0055
--- /dev/null
+++ b/variants/rp2040/zero-node/variant.h
@@ -0,0 +1,61 @@
+#define ARDUINO_ARCH_AVR
+
+// Reduce clock speed down to 18 MHz to reduce power consumption
+//#define RP2040_SLOW_CLOCK
+
+#ifdef RP2040_SLOW_CLOCK
+// Since UART1 is busy because of the I2C/SPI buses, we need to modify source code (src/SerialConsole.cpp) and use UART0 (Serial1)
+#define SERIAL2_TX 0
+#define SERIAL2_RX 1
+// Reroute log output in SensorLib when USB is not available
+#define log_e(...) Serial1.printf(__VA_ARGS__)
+#define log_i(...) Serial1.printf(__VA_ARGS__)
+#define log_d(...) Serial1.printf(__VA_ARGS__)
+#endif
+
+// Enable AHT10 temperature sensor
+#define ENVIRONMENTAL_TELEMETRY_MODULE_ENABLE 1
+#define I2C_SDA 4
+#define I2C_SCL 5
+
+// Disable unused components
+#define HAS_GPS 0
+#define HAS_SCREEN 0
+#define EXT_NOTIFY_OUT -1
+#define BUTTON_PIN -1
+
+// Heartbeat LED
+#define LED_PIN 0
+#ifdef RP2040_SLOW_CLOCK
+#undef LED_PIN
+#define LED_PIN -1
+#endif
+
+// Battery related settings
+#define BATTERY_PIN 26
+// ratio of voltage divider = 3.0 (R1=200k, R2=100k)
+#define ADC_MULTIPLIER 3.0
+#define BATTERY_SENSE_RESOLUTION_BITS ADC_RESOLUTION
+// Custom Li-Ion discharge curve (since while powering directly from battery, RP2040 Zero can't measure battery voltege lower than 3.3V)
+#define OCV_ARRAY 4190, 4050, 3990, 3890, 3800, 3750, 3700, 3650, 3600, 3500, 3400
+#define EXT_CHRG_DETECT 27
+#define EXT_CHRG_DETECT_MODE INPUT_PULLDOWN
+
+// LoRa related settings
+#define USE_RF95
+
+#undef LORA_SCK
+#undef LORA_MISO
+#undef LORA_MOSI
+#undef LORA_CS
+
+#define LORA_SCK 10
+#define LORA_MISO 12
+#define LORA_MOSI 11
+#define LORA_CS 13
+
+#define LORA_DIO0 8
+#define LORA_RESET 9
+#define LORA_DIO1 7
+#define LORA_DIO2 6
+#define LORA_DIO3 RADIOLIB_NC