Smart Kitchen Appliance
Connected blender with capacitive touch UI and over-the-air firmware updates.
- Stack
- ESP32-S3 · Capacitive touch · OTA · MQTT
- Role
- Firmware + PCB layout
- Outcome
- Launched on Amazon. 4.6★ avg rating across 800+ reviews.
Challenge
The brief.
Glass-surface capacitive touch through 6mm tempered glass with reliable false-positive rejection during blade operation.
Approach
How we built it.
Custom touch driver with motor-EMI filter. Bootloader supporting A/B partition OTA. iOS/Android app paired via Wi-Fi provisioning.
Result
What shipped.
Sub-50ms touch latency. 100% successful OTA campaign across 12,000 units.
More work
Other recent case studies.
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