There’s a couple of things that make this possible. First of all, the multimeter’s processor is not covered in a black epoxy blob, leaving the pins exposed for hacking. Second, the chip model ...

The black blobs on cheap PCBs haunt those of us ... matters that [Throbscottle] shared his journey of repairing a vintage multimeter whose epoxy-covered single-chip-multimeter ICL7106 heart ...

To use a multimeter, insert the red and black leads into the appropriate jack. Most multimeters have three jacks, though some ...