Quantity   Component name
1 × DIY PCB (single sided)
1 × 60mm PWM Controlled PC Fan (4-Wire) Fan
1 × Boost converter (from 5V to 12V) Bought on ebay
1 × ATtiny2313A 8-bit Microcontroller
1 × DS18B20 digital thermometer Sensors / Temperature, Thermal
2 × Metric M3 bolts with a length of 18-22mm To hold the fan to the box.
1 × 3.6864 MHz Crystal To generate a clock for the ATtiny2313A to get a baudrate of 11500.
1 × 220uF Electrolytic Capacitor
1 × 4.7uF Electrolytic Capacitor
1 × Diode (freewheeling diode, suppressor diode, suppression diode or clamp diode)
1 × 100nF Ceramic Capacitor Decoupling, Size:0805
1 × 4.7K Ohm resistor Pull-up resistor for the 1-wire bus to the DS18B20. Size: 1206
2 × 15pF Ceramic Capacitor Size:0805