ET-S31
AS5600 Magnetic Rotary Encoder
12-bit contactless angle sensor with magnet
AED 19.00
Out of stockOverview
12-bit contactless angle sensor with magnet
The ET-S31 is built around the ams AS5600 — 12-bit (4096 steps) contactless angle, programmable range, analog/PWM output plus I2C. It connects over I²C fixed 0x36 (AS5600L variant = programmable address) and is powered from VIN 3.3–5.5V, onboard LDO; sensor at 3.3V (VDD5V tied to VDD3V3).
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
- Motor and servo position feedback
- Contactless potentiometers
- Robot joints
Key features
What makes it different
Sensor
ams AS5600: 12-bit (4096 steps) contactless angle, programmable range, analog/PWM output plus I2C
Interface
I2C fixed 0x36 (AS5600L variant = programmable address)
Supply
VIN 3.3–5.5V, onboard LDO; sensor at 3.3V (VDD5V tied to VDD3V3)
Magnet
Diametric Ø6 × 2.5 mm neodymium, 0.5–3 mm air gap. Sold as ET-S31-KIT (board + magnet), the way Adafruit offers its magnet add-on
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 AS5600: 12-bit (4096 steps) contactless angle, programmable range, analog/PWM output plus I2C |
|---|---|
| Interface | I2C fixed 0x36 (AS5600L variant = programmable address) |
| Supply | VIN 3.3–5.5V, onboard LDO; sensor at 3.3V (VDD5V tied to VDD3V3) |
| Magnet | Diametric Ø6 × 2.5 mm neodymium, 0.5–3 mm air gap. Sold as ET-S31-KIT (board + magnet), the way Adafruit offers its magnet add-on |
| 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) · 8-pin 2.54 mm header |
| Main IC | AS5600-ASOM (LCSC C79815) |
| Revision | Rev B |
| Libraries | RobTillaart AS5600, Seeed/SimpleFOC MagneticSensorI2C, ESPHome as5600 |
|---|
| JP1 (default Closed) | Cut to turn off the LED |
|---|---|
| JP2 (default Closed) | Cut to remove the host-side I2C pull-ups |
Performance
Resolution by 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 | OUT | Power | Analog 0–3.3V or PWM (3.3V level) |
| 7 | DIR | Signal | High = counter-clockwise increasing |
| 8 | GND | Ground | Ground |
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-S31 AS5600 Magnetic Rotary Encoder (assembled)
- 1 × 8-pin 2.54 mm male header, unsoldered
- 1 × Diametric magnet Ø6 × 2.5 mm N35 (kit accessory)
Getting started
- Plug in a Qwiic / STEMMA QT cable, or solder the header and wire VIN, GND, SDA and SCL
- Libraries: RobTillaart AS5600, Seeed/SimpleFOC
MagneticSensorI2C, ESPHomeas5600 - Run an I²C scanner to confirm the address: 0x36
Compare
Which magnetic sensor?
| AS5600 Magnetic Rotary Encoder (this board)This board | ET-S30 TMAG5273 3D Hall-Effect Sensor | ET-S28 MMC5983MA 18-bit Magnetometer | |
|---|---|---|---|
| What it does | 12-bit contactless angle sensor with magnet | 3-axis magnetic position sensor, A1 and A2 versions | Precision 3-axis compass for drones and robots |
| Interface | I²C fixed 0x36 (AS5600L variant = programmable… | I²C 0x35 (A1 variant; reprogrammable), INT | I²C fixed 0x30, INT |
| Best for | Motor and servo position feedback | Joysticks and thumb controls | Drone and rover compass |
| Price | 19 AED | 19 AED | 49 AED |
Downloads
Documents and design files
Need a custom version of this board?
Different connector, size or sensor? We design and build custom variants.