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Update Heltec HT-C62 variant based on HT-DEV-ESP board
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* I2C is not defined in the reference schematic nor HT-DEV-ESP board, remove definition accordingly
* There is no screen in the the reference schematic nor HT-DEV-ESP board, change definition accordingly
* BUTTON_PIN has a 10 kOhm pullup resistor on HT-DEV-ESP, turning off redundant internal pullup should save some power
* LED is connected to GPIO2 on HT-DEV-ESP and is not inverted, update definition accordingly
* Remove redundant undef lines for LoRa pins

Above changes were built and flashed to my [HT-DEV-ESP_V2 board purchased from Heltec's Taobao store](https://item.taobao.com/item.htm?id=521590063077).

Signed-off-by: Andrew Yong <[email protected]>
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ndoo committed Apr 27, 2024
1 parent dfcabba commit fc2f098
Showing 1 changed file with 5 additions and 13 deletions.
18 changes: 5 additions & 13 deletions variants/heltec_esp32c3/variant.h
Original file line number Diff line number Diff line change
@@ -1,24 +1,16 @@
#define I2C_SDA 1
#define I2C_SCL 0

#define BUTTON_PIN 9
#define BUTTON_NEED_PULLUP

// LED flashes brighter
// LED pin on HT-DEV-ESP_V2 and HT-DEV-ESP_V3
// https://resource.heltec.cn/download/HT-CT62/HT-CT62_Reference_Design.pdf
#define LED_PIN 18 // LED
#define LED_INVERTED 1
// https://resource.heltec.cn/download/HT-DEV-ESP/HT-DEV-ESP_V3_Sch.pdf
#define LED_PIN 2 // LED
#define LED_INVERTED 0

#define HAS_SCREEN 1
#define HAS_SCREEN 0
#define HAS_GPS 0
#undef GPS_RX_PIN
#undef GPS_TX_PIN

#undef LORA_SCK
#undef LORA_MISO
#undef LORA_MOSI
#undef LORA_CS

#define USE_SX1262
#define LORA_SCK 10
#define LORA_MISO 6
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