Contact person: Pi Zero Camera-Sensor Bridge

Phone:Show

Email:Show

Location: Delhi, India

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"I need a clean, well-commented algorithm that runs on a Raspberry Pi Zero 2 W and ties three things together: the official Raspberry Pi camera module ([login to view URL]), an SC05 electro-chemical H₂S sensor ([login to view URL]) and a companion mobile app.

Core flow
• The Pi pairs with the phone over Bluetooth or Wi-Fi—the script should auto-detect what is available and open a small bidirectional channel for both commands and data.
• Two physical push-buttons sit on GPIO:
  1. Button A captures a still image as PNG, stores it locally, then pushes it to the app.
  2. Button B starts a 10–15 s window where sendors values are grabbed whenever a trigger arrives (either the same button is pressed again or the app sends a “read now” signal). Each reading is timestamped and streamed back immediately.
• The same two commands must also be callable from inside the mobile app.

What I expect as deliverables
1. Python source (likely using picamera2, [login to view URL] / gpiozero, and either bluetooth-serial, BLE, sockets or simple Wi-Fi sockets) that fulfils the flow above.
2. Clear pinout diagram for the camera, sensor and buttons.
3. README that shows:
 • how to enable camera, I²C/SPI (if needed) on Raspberry Pi OS
 • one-line install for dependencies
 • sample JSON (or raw byte) payloads the app will receive.
4. Short test routine or mock mobile client proving image reception and sensor stream.

Acceptance: running your script on a stock Pi Zero 2 W must let me press Button A and watch a PNG arrive on the phone; press Button B (or tap its app counterpart) and see live sensors values for roughly 10–15 s, then stop automatically." (client-provided description)