thomseeen / summerschool.mqtt_doorbell_demo Goto Github PK

View Code? Open in Web Editor NEW

An ESP32 ESP-IDF project in PlatformIO using an OV2640 camera to send a picture via MQTT to a broker on a push-button signal: A Doorbell

License: MIT License

C 85.32% C++ 11.70% Objective-C 2.98%

summerschool.mqtt_doorbell_demo's Introduction

Summerschool.MQTT_Doorbell_Demo

An ESP32 ESP-IDF project in PlatformIO using an OV2640 camera to send a picture via MQTT to a broker on a push-button signal: A Doorbell.

Hardware

This project uses an ESP32 Devkit 1 board and an OV2640 breakout board. Also a push-button is used to "ring the bell". The button is wired up so it's low-active and connected to D33 on the ESP32. In the default configuration the camera needs to be wired up as shown below:

Interface	Camera PIN	ESP32 Pin	Code define
SCCB Clock	SIOC	27	CONFIG_SCL
SCCB Data	SIOD	26	CONFIG_SDA
System Clock	XCLK	21	CONFIG_XCLK
Vertical Sync	VSYNC	25	CONFIG_VSYNC
Horizontal Reference	HREF	23	CONFIG_HREF
Pixel Clock	PCLK	22	CONFIG_PCLK
Pixel Data Bit 0	D2	4	CONFIG_D0
Pixel Data Bit 1	D3	5	CONFIG_D1
Pixel Data Bit 2	D4	18	CONFIG_D2
Pixel Data Bit 3	D5	19	CONFIG_D3
Pixel Data Bit 4	D6	36 (VP)	CONFIG_D4
Pixel Data Bit 5	D7	39 (VN)	CONFIG_D5
Pixel Data Bit 6	D8	34	CONFIG_D6
Pixel Data Bit 7	D9	35	CONFIG_D7
Camera Reset	RET	32	CONFIG_RESET
Camera Power Down	PWDN	100k Pulldown to Gnd
Power Supply 3.3V	3V3	3V3
Ground	GND	GND

Client

To display if someone ringed the door and show the image taken, take a look at https://github.com/Thomseeen/Summerschool.MQTT_Doorbell_Client.

Recommend Projects

thomseeen / summerschool.mqtt_doorbell_demo Goto Github PK