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Welcome to B4X forum!
B4X is a set of simple and powerful cross platform RAD tools:
- B4A (free) - Android development
- B4J (free) - Desktop and Server development
- B4i - iOS development
- B4R (free) - Arduino, ESP8266 and ESP32 development
hardware serial ports
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B4R Question Error after updating ESP32 boards
My code is working fine using ESP32 boards version 1.0.6, but after upgrading to version 2.0.0 I get the following error when initializing second hardware serial port, E (64) uart: uart_set_pin(595): tx_io_num error ESP_ERROR_CHECK failed: esp_err_t 0xffffffff (ESP_FAIL) at 0x4008ba60 file...- janderkan
- Thread
- esp32 hardware serial ports
- Replies: 10
- Forum: B4R Questions
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B4R Code Snippet ESP32 hardware serials on TTGO Lora board
Following these instructions you have access to the 3 hardware serials on an ESP32. Serial0 is connected to the USB interface. The default pins are Serial0 - RX: GPIO3 , TX: GPIO1 Serial1 - RX: GPIO9 , TX: GPIO10 Serial2 - RX: GPIO16 , TX: GPIO17 On a TTGO Lora board the GPIO 9,10,16,17 are...- janderkan
- Thread
- esp32 hardware serial ports lora
- Replies: 0
- Forum: B4R Code Snippets