A. Hardware revisions

A. Hardware revisions

This page lists adapter hardware revisions together with specifics for each one.

Each revision shows only change from the previous one.

v6.1 and newer

• firmware file: firmware-HW_v5.x.bin
• RESET_PIN: TO-EBUS (GPIO20)
• added missing via in v6.0

v6.0

• firmware file: firmware-HW_v5.x.bin
• RESET_PIN: TO-EBUS (GPIO20)
• trimmer is replaced by PWM setting in web interface

v5.2

• firmware file: firmware-HW_v5.x.bin
• RESET_PIN: TO-EBUS (GPIO20)
• USB power works with USB-C - USB-C cables
• replaced VCC selector jumper with 2.0mm pitch:
  • power from EBUS: jumper in position VCC-VBUS
  • power from 5V USB-C connector: jumper removed
  • power from any adapter 5-24V: remove jumper and connect adapter to VCC and GND pins

v5.1

• firmware file: firmware-HW_v5.x.bin
• RESET_PIN: TO-EBUS (GPIO20)
• fixed reference voltage resistor value

v5.0

• firmware file: firmware-HW_v5.x.bin
• MCU changed to ESP32-C3
• RESET_PIN: TO-EBUS (GPIO20)
• removed TX-DISABLE - MCU doesn't transmit any messages during startup on UART pins
• added USB-C connector for power and/or programming
  • USB power works only with USB-A - USB-C cables (bug)
• added VCC selector jumper - you can choose from:
  • power from EBUS: jumper in position VCC-VBUS
  • power from 5V USB-C connector: jumper in position VCC-VUSB
  • power from any adapter 5-24V: remove jumper and connect adapter to VCC and GND pins
• SOD-123 diodes
• added LED D8 for MCU status

v4.1

• firmware file: firmware-HW_v4.x.bin
• RESET_PIN: TX-DISABLE (GPIO5)
• added debug pin to programming header

v4.0

• firmware file: firmware-HW_v4.x.bin
• RESET_PIN: TX-DISABLE (GPIO5)
• moved TX-DISABLE to GPIO5
• LEDs position changed
• added tp3, jp1 - you can apply 24V external power supply between tp2 (+) and tp3 (-). If you cut jp1, you can use any adapter with voltage 5-24V

v3.0

• firmware file: firmware-HW_v3.x.bin
• step-down: ME3116
• RESET_PIN: MCU GPIO5
• fixed TX-disable - GPIO2 - blue LED on module shines when TX enabled
• added programming header
• added LEDS for TX, RX, Power
• added tp2 - you can apply 24V external power supply between tp2 (+) and BUS GND (-). If you remove D4, you can use an adapter with voltage 5-24V

v2.0

• firmware file: firmware-HW_v3.x.bin
• step-down: XL7015
• RESET_PIN: MCU GPIO5
• replaced SMD to multiturn timmer
• added TX-disable - GPIO2 - function not working

v1.0

• MCU: ESP8266
• step-down: MP2307
• SMD trimmer