Circuit Documentation

Summary

This document provides a detailed overview of a complex circuit involving various sensors, a camera, a GPS module, a GSM module, and a Raspberry Pi 4B. The circuit is designed to capture images, read sensor data, and communicate via GSM. It also includes a heart pulse sensor for emergency detection. The captured data is displayed on an OLED screen.

Component List

1. IMX296 Color Global Shutter

   • Description: A high-speed global shutter camera sensor.
   • Pins: Ribbon Cable

2. MT3608

   • Description: A DC-DC step-up power converter.
   • Pins: VOUT+, VIN+, VOUT-, VIN-

3. Raspberry Pi 4B

   • Description: A powerful single-board computer.
   • Pins: 3V3, 5V, GPIO2, GPIO3, GND, GPIO4, GPIO14, GPIO15, GPIO17, GPIO18, GPIO27, GPIO22, GPIO23, GPIO24, GPIO10, GPIO9, GPIO25, GPIO11, GPIO8, GPIO7, ID_SD, GPIO5, GPIO6, GPIO12, GPIO13, GPIO19, GPIO16, GPIO26, GPIO20, GPIO21, ID_SC, TR01_TAP, TR00_TAP, TR03_TAP, TR02_TAP, RUN, GLOBAL_EN, ETH, HDMI 0, HDMI 1, CAMERA, AV

4. Neo 6M GPS Module

   • Description: A GPS module for location tracking.
   • Pins: GND, TX, RX, VCC

5. Resettable Fuse PTC

   • Description: A resettable fuse for overcurrent protection.
   • Pins: 1, 2

6. Adafruit BMP388

   • Description: A barometric pressure and temperature sensor.
   • Pins: VCC, 3.3V, GND, SCK/SCL, SDO/ADR, SDI/SDA, CS, INT

7. Lipo Battery

   • Description: A rechargeable lithium polymer battery.
   • Pins: VCC, GND

8. MPU-6050

   • Description: A 6-axis motion tracking device.
   • Pins: VCC, GND, SCL, SDA, XDA, XCL, AD0, INT

9. Sim800l

   • Description: A GSM module for communication.
   • Pins: NET, RST, VCC, RXD, TXD, GND

10. Adafruit Perma-Proto HAT

    • Description: A prototyping HAT for Raspberry Pi.
    • Pins: SDA, SCL, TXD, RXD, GPIO4, GPIO17, GPIO18, GPIO27, GPIO22, GPIO23, GPIO24, GPIO25, SPI_MOSI, SPI_MISO, SPI_SCLK, SPI_CE0, SPI_CE1, GPIO5, GPIO6, GPIO12, GPIO13, GPIO16, GPIO19, GPIO20, GPIO21, 3.3V, 5.0V, GND, EEDATA, EECLK, GPIO26, N$1, N$2, N$3, N$4, N$5, N$6, N$7, N$8, N$9, N$10, N$11, N$12, N$13, N$14, N$15, N$17, N$18, N$19, N$20, N$21, N$22, N$23, N$39, N$41, N$42, N$43, N$44, N$45, N$46, N$47, N$48, N$49, N$50, N$51, N$52, N$53, N$54, N$55, N$56, N$57, N$58, N$59, N$60, N$61, N$62

11. Heart Pulse Sensor

    • Description: A sensor to detect heart pulse.
    • Pins: GND, VCC, SIGNAL

12. 0.96" OLED

    • Description: A small OLED display.
    • Pins: GND, VDD, SCK, SDA

13. 7-Segment Panel Celsius Thermometer

    • Description: A thermometer with a 7-segment display.
    • Pins: V+, V-

14. Solar Panel

    • Description: A solar panel for energy harvesting.
    • Pins: +, -

15. 1N4007 Rectifier Diode

    • Description: A general-purpose rectifier diode.
    • Pins: Cathode, Anode

16. Ceramic Capacitor

    • Description: A capacitor for filtering and stabilization.
    • Pins: pin0, pin1
    • Properties: Capacitance: 0.0000001 Farads

Wiring Details

IMX296 Color Global Shutter

• Ribbon Cable connected to Raspberry Pi 4B CAMERA pin.

MT3608

• VIN+ connected to Ceramic Capacitor pin1, Lipo Battery VCC, and Solar Panel -.
• VIN- connected to Ceramic Capacitor pin0, Lipo Battery GND, and Solar Panel +.
• VOUT+ connected to Resettable Fuse PTC pin2.
• VOUT- connected to Adafruit Perma-Proto HAT GND.

Raspberry Pi 4B

• CAMERA connected to IMX296 Color Global Shutter Ribbon Cable.

Neo 6M GPS Module

• GND connected to Adafruit Perma-Proto HAT GND.
• TX connected to Adafruit Perma-Proto HAT TXD.
• RX connected to Adafruit Perma-Proto HAT RXD.
• VCC connected to Adafruit Perma-Proto HAT 3.3V.

Resettable Fuse PTC

• 2 connected to MT3608 VOUT+.
• 1 connected to 1N4007 Rectifier Diode Cathode.

Adafruit BMP388

• SCK/SCL connected to Adafruit Perma-Proto HAT N$61.
• SDI/SDA connected to Adafruit Perma-Proto HAT N$62.
• GND connected to Adafruit Perma-Proto HAT GND.
• VCC connected to Adafruit Perma-Proto HAT 3.3V.

Lipo Battery

• VCC connected to Ceramic Capacitor pin1, MT3608 VIN+, and Solar Panel -.
• GND connected to Ceramic Capacitor pin0, MT3608 VIN-, and Solar Panel +.

MPU-6050

• VCC connected to Adafruit Perma-Proto HAT 3.3V.
• GND connected to Adafruit Perma-Proto HAT GND.
• SCL connected to Adafruit Perma-Proto HAT N$61.
• SDA connected to Adafruit Perma-Proto HAT N$62.

Sim800l

• VCC connected to Adafruit Perma-Proto HAT 5.0V.
• RXD connected to Adafruit Perma-Proto HAT GPIO18.
• TXD connected to Adafruit Perma-Proto HAT GPIO17.
• GND connected to Adafruit Perma-Proto HAT GND.

Adafruit Perma-Proto HAT

• GND connected to MT3608 VOUT-, Adafruit BMP388 GND, Neo 6M GPS Module GND, MPU-6050 GND, Sim800l GND, Heart Pulse Sensor GND, 0.96" OLED GND, and 7-Segment Panel Celsius Thermometer V-.
• 3.3V connected to Adafruit BMP388 VCC, Neo 6M GPS Module VCC, MPU-6050 VCC, Heart Pulse Sensor VCC, 0.96" OLED VDD, and 7-Segment Panel Celsius Thermometer V+.
• 5.0V connected to Sim800l VCC and 1N4007 Rectifier Diode Anode.
• N$61 connected to Adafruit BMP388 SCK/SCL and MPU-6050 SCL.
• N$62 connected to Adafruit BMP388 SDI/SDA and MPU-6050 SDA.
• GPIO4 connected to Heart Pulse Sensor SIGNAL.
• GPIO22 connected to 0.96" OLED SCK.