ET-S65
VCNL4040 Proximity + Light Sensor
IR proximity to 20 cm plus ambient light, Qwiic
AED 25.00
Out of stockOverview
IR proximity to 20 cm plus ambient light, Qwiic
The ET-S65 is built around the Vishay VCNL4040 — proximity 0–20cm (IR LED + 16-bit), ambient light 0–6.5k lux. It talks over I2C fixed 0x60 and runs from VIN 3.3–5.5V; LDO for the logic, IR LED anode from VIN.
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
- Touchless switches
- Screen auto-brightness
- Object presence detection
Key features
What makes it different
Sensor
Vishay VCNL4040: proximity 0–20cm (IR LED + 16-bit), ambient light 0–6.5k lux
Interface
I2C fixed 0x60
Supply
VIN 3.3–5.5V; LDO for the logic, IR LED anode from VIN
Libraries
Adafruit_VCNL4040, SparkFun VCNL4040
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 | Vishay VCNL4040: proximity 0–20cm (IR LED + 16-bit), ambient light 0–6.5k lux |
|---|---|
| Interface | I2C fixed 0x60 |
| Supply | VIN 3.3–5.5V; LDO for the logic, IR LED anode from VIN |
| 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 | VCNL4040M3OE (LCSC C142526) |
| Revision | Rev A |
| Libraries | Adafruit_VCNL4040, SparkFun VCNL4040 |
|---|
| JP1 (default Closed) | Cut to turn off the LED |
|---|---|
| JP2 (default Closed) | Cut to remove the host-side I2C pull-ups |
Performance
Range
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 interrupt |
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-S65 VCNL4040 Proximity + Light 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_VCNL4040, SparkFun VCNL4040
- Run an I²C scanner to confirm the address: 0x60
Compare
Which light or proximity sensor?
| VCNL4040 Proximity + Light Sensor (this board)This board | ET-S69 OPT3001 Lux Sensor | ET-S03 VEML7700 Ambient Light Sensor | ET-S56 BH1750 Light Sensor | |
|---|---|---|---|---|
| What it does | IR proximity to 20 cm plus ambient light, Qwiic | Light sensor matched to the human eye, 0.01–83k lux, Qwiic | High-accuracy lux sensor, 0–120k lux, Qwiic | Lux meter from 1 to 65,535 lx, Qwiic |
| Interface | I²C fixed 0x60 | I²C 0x44 | I²C, fixed 0x10 | I²C 0x23 / 0x5C |
| Best for | Touchless switches | Daylight-harvesting lighting control | Auto-brightness for displays | Automatic lighting |
| Price | 25 AED | 11 AED | 15 AED | 14 AED |
Downloads
Documents and design files
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