The code is probably sent too fast to the device. As a workaround you can try to check Settings->Communication->Throttle Send. Then uploading will be slower.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
UART_OVERFLOW
The code is probably sent too fast to the device. As a workaround you can try to check Settings->Communication->Throttle Send. Then uploading will be slower.