STS-5 Dosimeter (Geiger Counter)
thingiverse
My initial draft of a minimalist design for a case and driver electronics for a STS-5 (CTC-5) Geiger-Müller tube is based around an Arduino Nano clone that drives a 0.96" OLED display, a standard 5mm LED, and a 12mm Piezo buzzer. The system runs from an 18650 Lithium Ion 3.7v cell, which is charged and boosted for Arduino use by a TP4056 board. The STS-5 tube requires low current 400VDC, which is provided by a HIA4V1 DCDC step-up board powered by the same 5v as the Arduino. BOM: * 18650 Cell - These can be salvaged from many sources. * TP4056 Li-Ion Charge w/ 5v Output * HIA4V1 280V-1200V Boost Converter * ATmega328P MCU * STS-5 Geiger Muller Tube * Active Buzzer * 0.96" OLED Display * Slider switch * LED, capacitor, resistors, transistor, wire. Software: Github Link. Wiring diagrams and final build pictures are yet to come.
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