IoT / Embedded SystemsSHIPPED
IoT-Based Remote AC Controller
IoT-based AC control system enabling remote air conditioner management over the internet using an ESP32.
Timeline
2024
Role
IoT Engineer & Firmware Dev
Team
1 person
OVERVIEW
Designed and built a full IoT pipeline to control an air conditioner remotely over the internet. The system captures original AC remote signals, decodes them, and re-transmits them on command via MQTT, eliminating the need for proprietary apps. It is built around an ESP32 with a custom IR transceiver circuit, covering the whole path from circuit design in KiCad to firmware and remote control. As a result, the AC can be operated from anywhere with an internet connection.
THE CHALLENGE
- The AC remote's infrared signals had to be captured and reproduced accurately for the AC to respond.
- Control had to work over the internet without relying on a proprietary app from the manufacturer.
THE SOLUTION
- Designed an IR send and receive circuit in KiCad, using a transistor-driven IR LED and an IR receiver module.
- Captured and decoded the original remote signals, then re-transmitted them from the ESP32.
- Exposed the control commands through MQTT so the AC can be triggered remotely.
- Wrote the firmware and tested the full flow from command to AC response.
TECH STACK
ESP32
MQTT
IR Transceiver
KiCad
Circuit Design
IR Communication
Embedded Systems
AT A GLANCE
TIMELINE2024
TEAM1 person
STATUSSHIPPED
TECHNOLOGIES7 tags
SCREENSHOTS
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