ET-S57
TCS34725 Colour Sensor
RGB + clear colour sensing with IR filter, Qwiic
AED 25.00
Out of stockOverview
RGB + clear colour sensing with IR filter, Qwiic
The ET-S57 is built around the ams TCS34725 — red, green, blue and clear channels, IR-blocking filter, 3,800,000:1 dynamic range. It connects over I²C fixed 0x29 (interrupt output) and is powered from VIN 3.3–5.5V, onboard LDO + level shifting.
Two Qwiic / STEMMA QT connectors let you chain it with other boards without soldering, and the 2.54 mm header fits a breadboard.
Designed in Dubai by ElectroTrical — the full schematic, BOM and design notes are published below.
Good for
- Colour sorting machines
- Ambient light colour matching
- Educational colour experiments
Key features
What makes it different
Sensor
ams TCS34725: red, green, blue and clear channels, IR-blocking filter, 3,800,000:1 dynamic range
Interface
I²C fixed 0x29, interrupt output
Supply
VIN 3.3–5.5V, onboard LDO + level shifting
Libraries
Adafruit_TCS34725, CircuitPython adafruit_tcs34725, ESPHome tcs34725
Qwiic / STEMMA QT
Two JST-SH connectors plus a 2.54 mm header — 3.3 V and 5 V hosts.
Open documentation
Schematic, BOM and layout notes published for every board.
Specifications
Technical specifications
| Sensor | ams TCS34725: red, green, blue and clear channels, IR-blocking filter, 3,800,000:1 dynamic range |
|---|---|
| Interface | I²C fixed 0x29, interrupt output |
| Supply | VIN 3.3–5.5V, onboard LDO + level shifting |
| Size | 25.4 × 17.8 mm |
|---|---|
| Mounting | 4 × M2.5 holes, 2.54 mm from each corner |
| Connectors | 2 × Qwiic / STEMMA QT (JST SH 4-pin) · 6-pin 2.54 mm header |
| Main IC | TCS34725FN (LCSC C2649487) |
| Revision | Rev A |
| Libraries | Adafruit_TCS34725, CircuitPython adafruit_tcs34725, ESPHome tcs34725 |
|---|
| JP1 (default Closed) | Cut to turn off the LED |
|---|---|
| JP2 (default Closed) | Cut to remove the host-side I2C pull-ups |
Performance
Sensitivity
Pinout
Pin map and connections
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VIN | Power | 3.3–5.5V |
| 2 | 3V3 | Power | LDO output |
| 3 | GND | Ground | Ground |
| 4 | SCL | I²C | I²C clock |
| 5 | SDA | I²C | I²C data |
| 6 | INT | Output | Open-drain, 3.3V level |
Qwiic / STEMMA QT pins: GND, VIN, SDA, SCL (same on both connectors). I²C pull-ups (10 kΩ) are on the board; cut JP2 to remove them.
Mechanical
Dimensions and what's in the box
In the box
- 1 × ET-S57 TCS34725 Colour Sensor (assembled)
- 1 × 6-pin 2.54 mm male header, unsoldered
Getting started
- Plug in a Qwiic / STEMMA QT cable, or solder the header and wire VIN, GND, SDA and SCL
- Libraries: Adafruit_TCS34725, CircuitPython adafruit_tcs34725, ESPHome
tcs34725 - Run an I²C scanner to confirm the address: 0x29
Compare
Which light sensor?
| TCS34725 Colour Sensor (this board)This board | ET-S56 BH1750 Light Sensor | ET-S03 VEML7700 Ambient Light Sensor | |
|---|---|---|---|
| What it does | RGB + clear colour sensing with IR filter, Qwiic | Lux meter from 1 to 65,535 lx, Qwiic | High-accuracy lux sensor, 0–120k lux, Qwiic |
| Interface | I²C fixed 0x29, interrupt output | I²C 0x23 / 0x5C | I²C, fixed 0x10 |
| Best for | Colour sorting machines | Automatic lighting | Auto-brightness for displays |
| Price | 25 AED | 14 AED | 15 AED |
Downloads
Documents and design files
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