Jumpers
Typically you don’t need to change the positions of the jumpers to use the board.
BUZ_EN1 – buzzer enable jumper – when closed the buzzer plays the sound
commands.
Default state: Open (Buzzer disabled)
ESP_PROG1 – ESP programming enabled when closed ESP32 enters bootloader
mode at reset and can be programmed over the USB connector.
Default state: Open (ESP programming handled by software)
UART_D – UART disable – when closed the UART connection between
eZ80 and ESP32 is disconnected. This is necessary when ESP32 is
programming.
Default state: Open (communication between eZ80 and ESP32 enabled)
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