I'm planning to order my first custom PCB from JLCPCB, which will only have one RAM chip breakout to include on my breadboard prototype. On my breadboard, I've gotten the following working:

- ICE40 FPGA (Architry Cu)
- ESP32-C3 MCU (RISC-V + Wifi/BT)
- OV7670 Camera (640x480 30 FPS)

I'd like to use the FPGA to read the camera data and store it in a RAM. Also, I'd like the MCU to be able to read single pixels at ~1000 Hz from the RAM. I plan to use the FPGA to manage the interface between the MCU and the RAM as well.
At first, my choice of RAM was a small RAM that is hard to find with a long lead time with JLCPCB. Now, I'm planning to use a slightly larger RAM with shorter lead time. This is the RAM part I'm looking at:

https://www.digikey.com/en/products/detail/issi-integrated-silicon-solution-inc/IS42S16800J-7BLI/22471437

The design in the image is the old part. I'm now starting a redesign of the PCB with the new slightly larger RAM.

#foss #fosh #freemanufacturing #bce #bcecoop #bcecoopinc #fpga #mcu #ram #maker #ee #breadboard #prototype #jlcpcb

My CNC aluminum router is now in its new robot box. The controller is on the left, so I can operate the machine with the doors closed. Still need to connect vacuum, air compressor, and lubricant, but getting closer! The motors and sensors are working!

#cnc #aluminum #router #maker #foss #fosh #homebusiness #manufacturing #freemanufacturing

I'm working on a concept of Free Manufacturing, which is an idea that includes Free Hardware, Free Software, and an idea that anyone anywhere can manufacture products independently, to make a living, or otherwise help their local communities. This is a very rough draft, and I'm very open to feedback.

https://freemanufacturing.org/

#foss #fosh #freehardware #freesoftware #freemanufacturing