Circuit Documentation

Summary

This circuit involves an Arduino Pro Mini microcontroller interfacing with various components including a momentary switch, a laser emitter, a temperature sensor (mlx90614), an OLED display, and a USB Serial TTL for communication. The circuit is powered by a 9V battery.

Component List

1. Arduino Pro Mini

   • Description: A compact microcontroller board based on the ATmega328P.
   • Pins: DTR, TXO, RXI, VCC, GND, A4, A5, RAW, RESET, A3, A2, A1, A0, SCK, MISO, MOSI, D10, D9, D8, D7, D6, D5, D4, D3, D2

2. Black Momentary Switch 32 mm

   • Description: A momentary push-button switch.
   • Pins: In, Out

3. KY-008 Laser Emitter

   • Description: A laser module that emits a red laser beam.
   • Pins: SIG, 5v, GND

4. mlx90614

   • Description: An infrared temperature sensor.
   • Pins: SDA, SCL, GND, VIN

5. OLED 128x64 I2C Monochrome Display VDD-GND

   • Description: A monochrome OLED display with I2C interface.
   • Pins: VDD, GND, SCK, SDA

6. USB Serial TTL

   • Description: A USB to TTL serial converter.
   • Pins: GND, 5V, TX, RX, DTR, 3.3V

7. 9V Battery

   • Description: A standard 9V battery for powering the circuit.
   • Pins: -, +

Wiring Details

Arduino Pro Mini

• RAW: Connected to In of Black Momentary Switch 32 mm
• GND: Connected to GND of mlx90614, GND of 9V Battery, GND of KY-008 Laser Emitter, GND of OLED 128x64 I2C Monochrome Display, and GND of USB Serial TTL
• VCC: Connected to VIN of mlx90614, 5v of KY-008 Laser Emitter, VDD of OLED 128x64 I2C Monochrome Display, and 5V of USB Serial TTL
• A5: Connected to SCL of mlx90614 and SCK of OLED 128x64 I2C Monochrome Display
• A4: Connected to SDA of mlx90614 and SDA of OLED 128x64 I2C Monochrome Display
• DTR: Connected to DTR of USB Serial TTL
• TXO: Connected to RX of USB Serial TTL
• RXI: Connected to TX of USB Serial TTL
• MISO: Connected to SIG of KY-008 Laser Emitter

Black Momentary Switch 32 mm

• In: Connected to RAW of Arduino Pro Mini
• Out: Connected to + of 9V Battery

KY-008 Laser Emitter

• SIG: Connected to MISO of Arduino Pro Mini
• 5v: Connected to VCC of Arduino Pro Mini
• GND: Connected to GND of Arduino Pro Mini

mlx90614

• SDA: Connected to A4 of Arduino Pro Mini
• SCL: Connected to A5 of Arduino Pro Mini
• GND: Connected to GND of Arduino Pro Mini
• VIN: Connected to VCC of Arduino Pro Mini

OLED 128x64 I2C Monochrome Display VDD-GND

• VDD: Connected to VCC of Arduino Pro Mini
• GND: Connected to GND of Arduino Pro Mini
• SCK: Connected to A5 of Arduino Pro Mini
• SDA: Connected to A4 of Arduino Pro Mini

USB Serial TTL

• GND: Connected to GND of Arduino Pro Mini
• 5V: Connected to VCC of Arduino Pro Mini
• TX: Connected to RXI of Arduino Pro Mini
• RX: Connected to TXO of Arduino Pro Mini
• DTR: Connected to DTR of Arduino Pro Mini

9V Battery

• -: Connected to GND of Arduino Pro Mini
• +: Connected to Out of Black Momentary Switch 32 mm

Documented Code

Arduino Pro Mini Code (sketch.ino)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Additional Documentation (documentation.txt)