Securodoor

May 30, 2025

I got some planning done for my BOM ie what parts I plan on getting. For the trasmitter (the outdoor component): - ESP32-CAM Module - Push Button - MAX98357A I2S Amp - 8Ω 2W Speaker - MT3608 Boost Converter - TP4056 Module with Protection - 3.7V 1000mAh LiPo Battery - Dupont Wires

For the indoor reciever component: - ESP32 Dev Board - MAX98357A I2S Amp - 8Ω 2W Speaker - MT3608 Boost Converter - TP4056 Module with Protection - 3.7V 1000mAh LiPo Battery - 3d printed casing - Dupont Wires

Total time spent: 1 hour

Jun 1, 2025

I realized that building an extra indoor component would be useless since I already have a doorbell at home. So I want to change up the way it works. Essentially, the outdoor component will stay the same, except there will be a cutout at the bottom right above my current doorbell button. So when I press the button on the new doorbell a stick (or something rigid) will push the old button and make a sound inside the house, and I can just record the footage from when it was pressed.

I also want to use IFTTT to send a message to my phone when someone is at the door, just so I can make it work a bit better.

Here is the updated BOM without the need for an indoor reciever component: - ESP-32 CAM - FTDI Programming Board - 5V Active Buzzer - USB-C Breakout Board - Open Push Button - 2x LED (5mm Red) - MAX9814 Microphone Amplifier Module - 2x 1k ohm resistor (for LED) - 2x 5.1k ohm resistor (for the breakout board) - 10k ohm resistor (for button pull-up)

I plan on using the FTDI just so i can flash the code onto the esp32

It is 7:40 PM and I'm happy to say that I have FINALLY finished my PCB and Schematic

Schematic:

PCB:

3D Model of PCB:

Total time spent: 4 hours

Jun 2, 2025

Today, I'll start with the firmware (probably going to use arduino ide and then flashing it to the FTDI board and then flash to the esp-32 cam).

It is 10:19 PM and I've officially completed my CAD design for this project!!

CAD:

Total Hours Spent: 3