diff --git a/docs/getting-started/flashing-firmware/flashing-external-serial-adapter.mdx b/docs/getting-started/flashing-firmware/flashing-external-serial-adapter.mdx index 8a52b926..997f6a8e 100644 --- a/docs/getting-started/flashing-firmware/flashing-external-serial-adapter.mdx +++ b/docs/getting-started/flashing-firmware/flashing-external-serial-adapter.mdx @@ -43,15 +43,20 @@ There are multiple ways to connect the pins of the adapter to the target device: Disconnect your USB to Serial Adapter from the computer before starting this process. 1) Connect the RX pin of the adapter to the TX pin of the device + 2) Connect the TX pin of the adapter to the RX pin of the device + 3) Connect a GND pin of the adapter to the GND pin of the device + 4) Connect either the 5V pin of the adapter to the 5V pin of the device (illustrated) or the 3.3V pin of the adapter to the 3.3V pin of device. + 5) Bridge GPIO 0 to GND on the device with a jumper. (This places the device into flash mode when the device is powered up) Example wiring featuring a T-Beam ![image](https://user-images.githubusercontent.com/9000580/168446438-d14f34a0-b92d-4716-87fd-e0c2927a35fd.png) 6) Connect the device to a USB port on the computer + 7) Remove the jumper bridging GPIO 0 to GND ![enter-flash-mode](https://user-images.githubusercontent.com/9000580/168446974-c31d3e9c-3397-4cb1-90a4-91ef2e4d5fac.gif)