Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes a Nano 33 BLE microcontroller, a VL53L0X distance sensor, a 18650 battery in a holder, an MT3608 boost converter, a TP4056 battery charger, an Adafruit 16 NeoPixel Ring, a resistor, and an electrolytic capacitor. The circuit is designed to power the components, read distance measurements, and control the NeoPixel Ring.

Component List

Nano 33 BLE with pinout

• Description: A microcontroller board with Bluetooth Low Energy capabilities.
• Pins: TX, RX, RESET, GND, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11 (MOSI), D12 (MISO), VIN, 5V, A7, A6, A5 (SCL), A4 (SDA), A3, A2, A1, A0, AREF, 3V3, D13 (SCK)

VL53L0X

• Description: A time-of-flight distance sensor.
• Pins: vin, gnd, scl, sda

18650 in holder

• Description: A holder for a 18650 lithium-ion battery.
• Pins: GND, VCC

MT3608

• Description: A DC-DC boost converter.
• Pins: VOUT+, VIN+, VOUT-, VIN-

TP4056

• Description: A lithium-ion battery charger module.
• Pins: OUT-, B-, B+, OUT+, IN-, IN+

Adafruit 16 NeoPixel Ring

• Description: A ring of 16 individually addressable RGB LEDs.
• Pins: VDD, IN, OUT, GND

Resistor

• Description: A resistor with a resistance of 330 Ohms.
• Pins: pin1, pin2
• Properties: Resistance: 330 Ohms

Electrolytic Capacitor

• Description: A capacitor with a capacitance of 1 Farad.
• Pins: -, +
• Properties: Capacitance: 1 Farad

Wiring Details

Nano 33 BLE with pinout

• D6 is connected to pin1 of the Resistor.
• VIN is connected to VIN+ of the MT3608 and OUT+ of the TP4056.
• GND is connected to gnd of the VL53L0X.
• A5 (SCL) is connected to scl of the VL53L0X.
• A4 (SDA) is connected to sda of the VL53L0X.
• 3V3 is connected to vin of the VL53L0X.

VL53L0X

• gnd is connected to GND of the Nano 33 BLE with pinout.
• scl is connected to A5 (SCL) of the Nano 33 BLE with pinout.
• sda is connected to A4 (SDA) of the Nano 33 BLE with pinout.
• vin is connected to 3V3 of the Nano 33 BLE with pinout.

18650 in holder

• GND is connected to B- of the TP4056.
• VCC is connected to B+ of the TP4056.

MT3608

• VIN+ is connected to VIN of the Nano 33 BLE with pinout and OUT+ of the TP4056.
• VOUT+ is connected to VDD of the Adafruit 16 NeoPixel Ring and + of the Electrolytic Capacitor.
• VOUT- is connected to GND of the Adafruit 16 NeoPixel Ring and - of the Electrolytic Capacitor.
• VIN- is connected to OUT- of the TP4056.

TP4056

• OUT+ is connected to VIN+ of the MT3608 and VIN of the Nano 33 BLE with pinout.
• OUT- is connected to VIN- of the MT3608.
• B- is connected to GND of the 18650 in holder.
• B+ is connected to VCC of the 18650 in holder.

Adafruit 16 NeoPixel Ring

• VDD is connected to VOUT+ of the MT3608.
• IN is connected to pin2 of the Resistor.
• GND is connected to VOUT- of the MT3608.

Resistor

• pin1 is connected to D6 of the Nano 33 BLE with pinout.
• pin2 is connected to IN of the Adafruit 16 NeoPixel Ring.

Electrolytic Capacitor

• + is connected to VOUT+ of the MT3608.
• - is connected to VOUT- of the MT3608.

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