GoldMeter

GoldMeter measures the RESISTANCE and determines the Gold Content of jewelry (rings, necklaces, braclets, etc) ! (see schematic for a Table of Gold Content verses Resistance !!!)

KELVIN CLIPS plug into the banana plug connectors on the circuit board. Press the "Test" button and see the results on the OLED DIsplay!

Powered by two LiFePo AA Batteries.

TP4056 Module allows charging of the batteries. Battery Power Level displays on the OLED.

Commercial Gold Meters are extremely expensive. This is a budget solution.

Circuit board is Unverifed. The code written appears to be working properly.