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How can I program esp32 after assembly on a PCB?

We have a project on new production which is based on PCB including esp32. How can our hardware engineer program it after PCBA process by supplier?

PCB Assembly
September 19, 2023

Jumper the device to start into the serial boot loader, connect the UART to an off-board USB-UART adapter,
Run the well-known python tool for downloading just as you would with the dev board.

Or get the chip to tristate the flash pins, contact them with something else and directly write the flash.

Or program the flash chip before soldering it in place.

Next time around have a connector, edge fingers, or pads for a pogo-pin spring contact jig.

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Oliver Smith

Oliver is an experienced electronics engineer skilled in PCB design, analog circuits, embedded systems, and prototyping. His deep knowledge spans schematic capture, firmware coding, simulation, layout, testing, and troubleshooting. Oliver excels at taking projects from concept to mass production using his electrical design talents and mechanical aptitude.

Oliver Smith

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