Circuit Documentation

Summary

This circuit involves an Arduino UNO microcontroller interfacing with an INA219 current sensor and an MKE-S15 DS18B20 waterproof temperature sensor. The circuit is powered by a 3.7V battery and includes resistors for proper operation. The Arduino UNO is programmed to read data from the sensors and perform necessary operations.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

MKE-S15 DS18B20 Waterproof Temperature Sensor

• Description: A digital temperature sensor with a waterproof probe.
• Pins: SIG, 5V, GND

INA219

• Description: A current sensor that can measure both current and voltage.
• Pins: VCC, GND, SCL, SDA, VIN -, VIN +

3.7V Battery

• Description: A rechargeable lithium-ion battery.
• Pins: +, -

Resistor (200 Ohms)

• Description: A resistor with a resistance of 200 Ohms.
• Pins: pin1, pin2

Resistor (4700 Ohms)

• Description: A resistor with a resistance of 4700 Ohms.
• Pins: pin1, pin2

Wiring Details

Arduino UNO

• 5V: Connected to VCC of INA219, 5V of MKE-S15 DS18B20, and pin2 of 4700 Ohms resistor.
• GND: Connected to GND of INA219, - of 3.7V battery, GND of MKE-S15 DS18B20, and pin2 of 200 Ohms resistor.
• A4: Connected to SDA of INA219.
• A5: Connected to SCL of INA219.
• D2: Connected to SIG of MKE-S15 DS18B20 and pin1 of 4700 Ohms resistor.

MKE-S15 DS18B20 Waterproof Temperature Sensor

• 5V: Connected to 5V of Arduino UNO.
• GND: Connected to GND of Arduino UNO.
• SIG: Connected to D2 of Arduino UNO and pin1 of 4700 Ohms resistor.

INA219

• VCC: Connected to 5V of Arduino UNO.
• GND: Connected to GND of Arduino UNO.
• SDA: Connected to A4 of Arduino UNO.
• SCL: Connected to A5 of Arduino UNO.
• VIN -: Connected to pin1 of 200 Ohms resistor.
• VIN +: Connected to + of 3.7V battery.

3.7V Battery

• +: Connected to VIN + of INA219.
• -: Connected to GND of Arduino UNO.

Resistor (200 Ohms)

• pin1: Connected to VIN - of INA219.
• pin2: Connected to GND of Arduino UNO.

Resistor (4700 Ohms)

• pin1: Connected to SIG of MKE-S15 DS18B20 and D2 of Arduino UNO.
• pin2: Connected to 5V of Arduino UNO.

Documented Code

sketch.ino

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

}

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

}

documentation.txt