Sense.T.C
capacitive touch
Built around the Azoteq IQS323 ProxFusion controller, the Sense.T.C tile's entire top surface functions as a capacitive touch sensor, while a second input channel is available via one of the pads.
The IQS323 provides both proximity and touch detection with all signal processing on-chip, exposing processed results over I2C. Each channel reports 16-bit filtered counts, a 16-bit long-term average baseline, and binary proximity/touch states with configurable thresholds, debounce, and hysteresis. When configured as a slider across multiple tiles, the controller provides a 16-bit position output with on-chip gesture recognition including tap, swipe, flick, and hold.
Report rates are configurable per power mode, from every 16ms in normal self-capacitive mode (125µA average current consumption) up to every 160ms in 4 µA ultra-low-power mode (160 ms). In addition, event-driven reporting can leave the host free between changes in state.
Product Info
- Status
- Beta
- In Stock
- 4
- Pricing
Qty Each 1+ $10.00 10+ $9.00 50+ $8.50
Resources & Links
- Datasheet
- Download PDF
- JSON Tile Definition
- v0.5 (Feb 17, 2026)
- Drivers
- GitHub
- Discussion
- Discord
Application Notes
Sensing Surface
The entire top surface of the tile connected to the C1 sensor input with a 470-ohm series resistor.
Secondary Input
The C0 input on the IQS323 is directly connected to pad 8 of the tile, allowing for user configuration of a secondary capacitive touch input.
Pad Assignments
| Pad | Type | Function | Note | |
|---|---|---|---|---|
| 1 | ⏻ | GND | ||
| 2 | — | |||
| 3 | D | RDY | configurable interrupt output (with an internal 4.7k pull up on the open-drain) | |
| 4 | I2C | CLK | ||
| 5 | I2C | DAT | ||
| 6 | — | |||
| 7 | — | |||
| 8 | A | C0 | additional external cap-touch input | |
| 9 | — | |||
| 10 | ⏻ | V+ | 1.71-3.5V |
I2C
I2C- Mode
- slave
- Max Clock
- 1MHz
- Address
- 0x44
- Format
- —
| Function | Required | Pad(s) |
|---|---|---|
| I2C.CLK | No | 4 |
| I2C.DAT | No | 5 |
Development Product — This is an electronic development module intended for evaluation, prototyping, and integration into other designs by qualified engineers and developers. It is not a finished consumer product and has not been independently certified for FCC, CE, UL, or other regulatory compliance. The integrator of this module into a finished product is responsible for obtaining all necessary certifications. Not intended for use in life-support systems, safety-critical applications, or any application where failure could result in personal injury or property damage. See our Terms of Sale for full details.