Project Overview I developed this jig to automate the testing of complex PCBs. Key Components Microcontroller Dev Board: ESP32-C3-MINI. Hardware: Pogo pins and custom 3D-printed alignment frame. Software: Python-based data logging. Design Process I used KiCad for the schematic capture and PCB layout, focusing on a stackup that ensures signal integrity. C3 DEV Board Design MUX Network to Visualize the Nets C3 DEV Board PCB Layout
Introduction This Project Is Inspired By Henrik Forsten Nowadays many of the most “exciting” chips come only in leadless packages, such as BGA and QFN which are hard or impossible to solder just by soldering iron, because leads are under the chip where they can’t be reached. These kinds of chips are usually soldered using reflow soldering. Temperature profile in reflow soldering. Source: Wikipedia For the solder paste to work correctly, the temperature of the oven must follow the correct temperature profile accurately. Real reflow ovens are usually expensive, but ordinary toaster ovens can be used with an external controller board. ...