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Fix backwards GPS_RX_PIN/GPS_TX_PIN direction comments (#11585)

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GPS.cpp passes GPS_RX_PIN as the MCU's RX pin and GPS_TX_PIN as its TX
pin. Nine variants documented the opposite, which reads as if the pins
were swapped on working hardware (see #11584).

Comment-only change; no pin assignment is touched.
This commit is contained in:
Thomas Göttgens authored and GitHub committed 2026-08-24 11:29:54 +02:00
1 parent 0271be9369
commit ee48094ea8
9 files changed
+20 -20
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variants/esp32s3/ELECROW-ThinkNode-M5/variant.h
+2 -2
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@@ -45,8 +45,8 @@
#define PIN_GPS_STANDBY 11 // An output to wake GPS, low means allow sleep, high means force wake
#define GPS_TX_PIN 20 // This is for bits going TOWARDS the CPU
#define GPS_RX_PIN 19 // This is for bits going TOWARDS the GPS
#define GPS_TX_PIN 20 // This is for bits going TOWARDS the GPS
#define GPS_RX_PIN 19 // This is for bits going TOWARDS the CPU
#define GPS_THREAD_INTERVAL 50
variants/esp32s3/heltec_v4/variant.h
+3 -3
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@@ -92,7 +92,7 @@
#define PERIPHERAL_WARMUP_MS 1000 // Make sure I2C QuickLink has stable power before continuing
#define PIN_GPS_STANDBY (40) // An output to wake GPS, low means allow sleep, high means force wake
#define PIN_GPS_PPS (41)
// Seems to be missing on this new board
#define GPS_TX_PIN (38) // This is for bits going TOWARDS the CPU
#define GPS_RX_PIN (39) // This is for bits going TOWARDS the GPS
// GNSS is on the V4 expansion kit (CM121, 9600 baud by default), not on the bare board
#define GPS_TX_PIN (38) // This is for bits going TOWARDS the GPS
#define GPS_RX_PIN (39) // This is for bits going TOWARDS the CPU
#define GPS_THREAD_INTERVAL 50
variants/esp32s3/heltec_v4_r8/variant.h
+3 -3
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@@ -64,7 +64,7 @@
#define GPS_EN_ACTIVE LOW
#define PERIPHERAL_WARMUP_MS 1000 // Make sure I2C QuickLink has stable power before continuing
#define PIN_GPS_PPS (41)
// Seems to be missing on this new board
#define GPS_TX_PIN (38) // This is for bits going TOWARDS the CPU
#define GPS_RX_PIN (39) // This is for bits going TOWARDS the GPS
// GNSS is on the V4 expansion kit (CM121, 9600 baud by default), not on the bare board
#define GPS_TX_PIN (38) // This is for bits going TOWARDS the GPS
#define GPS_RX_PIN (39) // This is for bits going TOWARDS the CPU
#define GPS_THREAD_INTERVAL 50
variants/nrf52840/heltec_mesh_node_t096/variant.h
+2 -2
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@@ -161,8 +161,8 @@ No longer populated on PCB
#define GPS_EN_ACTIVE LOW
#define PERIPHERAL_WARMUP_MS 1000 // Make sure I2C QuickLink has stable power before continuing
#define PIN_GPS_PPS (32 + 11)
#define GPS_TX_PIN (0 + 25) // This is for bits going TOWARDS the CPU
#define GPS_RX_PIN (0 + 23) // This is for bits going TOWARDS the GPS
#define GPS_TX_PIN (0 + 25) // This is for bits going TOWARDS the GPS
#define GPS_RX_PIN (0 + 23) // This is for bits going TOWARDS the CPU
#define GPS_THREAD_INTERVAL 50
variants/nrf52840/heltec_mesh_node_t114-inkhud/variant.h
+2 -2
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@@ -115,8 +115,8 @@ No longer populated on PCB
#define PIN_GPS_PPS (32 + 4)
// Seems to be missing on this new board
// #define PIN_GPS_PPS (32 + 4) // Pulse per second input from the GPS
#define GPS_TX_PIN (32 + 7) // This is for bits going TOWARDS the CPU
#define GPS_RX_PIN (32 + 5) // This is for bits going TOWARDS the GPS
#define GPS_TX_PIN (32 + 7) // This is for bits going TOWARDS the GPS
#define GPS_RX_PIN (32 + 5) // This is for bits going TOWARDS the CPU
#define GPS_THREAD_INTERVAL 50
variants/nrf52840/heltec_mesh_node_t114/variant.h
+2 -2
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@@ -171,8 +171,8 @@ No longer populated on PCB
#define PIN_GPS_PPS (32 + 4)
// Seems to be missing on this new board
// #define PIN_GPS_PPS (32 + 4) // Pulse per second input from the GPS
#define GPS_TX_PIN (32 + 7) // This is for bits going TOWARDS the CPU
#define GPS_RX_PIN (32 + 5) // This is for bits going TOWARDS the GPS
#define GPS_TX_PIN (32 + 7) // This is for bits going TOWARDS the GPS
#define GPS_RX_PIN (32 + 5) // This is for bits going TOWARDS the CPU
#define GPS_THREAD_INTERVAL 50
variants/nrf52840/heltec_mesh_solar/variant.h
+2 -2
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@@ -115,8 +115,8 @@ No longer populated on PCB
#define PIN_GPS_PPS (32 + 4)
// Seems to be missing on this new board
// #define PIN_GPS_PPS (32 + 4) // Pulse per second input from the GPS
#define GPS_TX_PIN (32 + 7) // This is for bits going TOWARDS the CPU
#define GPS_RX_PIN (32 + 5) // This is for bits going TOWARDS the GPS
#define GPS_TX_PIN (32 + 7) // This is for bits going TOWARDS the GPS
#define GPS_RX_PIN (32 + 5) // This is for bits going TOWARDS the CPU
#define GPS_THREAD_INTERVAL 50
variants/nrf52840/meshlink/variant.h
+2 -2
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@@ -120,8 +120,8 @@ static const uint8_t SCK = PIN_SPI_SCK;
#define PIN_GPS_PPS (26) // Pulse per second input from the GPS
#define GPS_TX_PIN PIN_SERIAL1_TX // This is for bits going TOWARDS the CPU
#define GPS_RX_PIN PIN_SERIAL1_RX // This is for bits going TOWARDS the GPS
#define GPS_TX_PIN PIN_SERIAL1_TX // This is for bits going TOWARDS the GPS
#define GPS_RX_PIN PIN_SERIAL1_RX // This is for bits going TOWARDS the CPU
// #define GPS_THREAD_INTERVAL 50
variants/nrf52840/t-echo/variant.h
+2 -2
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@@ -177,8 +177,8 @@ External serial flash WP25R1635FZUIL0
#define PIN_GPS_STANDBY (32 + 2) // An output to wake GPS, low means allow sleep, high means force wake
// Seems to be missing on this new board
#define PIN_GPS_PPS (32 + 4) // Pulse per second input from the GPS
#define GPS_TX_PIN (32 + 8) // This is for bits going TOWARDS the CPU
#define GPS_RX_PIN (32 + 9) // This is for bits going TOWARDS the GPS
#define GPS_TX_PIN (32 + 8) // This is for bits going TOWARDS the GPS
#define GPS_RX_PIN (32 + 9) // This is for bits going TOWARDS the CPU
#define GPS_THREAD_INTERVAL 50