You've got the board, the code's written, and now you're staring at a USB port wondering how to actually talk to it. This Duinotech adaptor uses the original FT232 chip — not a clone — so your serial upload doesn't drop mid-transfer. Send and receive LEDs let you see data moving in real time instead of guessing. The voltage switch picks 3.3V or 5V data-pin levels to match your board. The 5V header pin stays at 5V straight from the USB socket; the switch only changes the data pin levels. Plug in, select your voltage, upload. Sorted
| brand | JAYCAR |
| chip | FT232 (original) |
| data_pin_voltage_options | 3.3V / 5V selectable |
| 5v_header_pin | Always 5V (fed from USB socket) |
| indicators | Send, Receive, Power |
| compatibility | Arduino compatible |
| rrp_aud | 40.84 |