One-minute PCB etching
Jim, from TechShop, has a nifty how-to on Instructables covering the sponge and Ferric Chloride method of quick n’ dirty PCB etching. He writes: This weekend I tried this sponge and ferric chloride method to etch 3 Arduino shield boards I am prototyping for our RFID-enabled member access system at TechShop (TechShop is the 15,000 […]