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Unit 8Servos2-I2C - 8-channel servo driver with 5V/3A power supply - I2C - STM32G031 - M5Stack U222
M5Stack Unit 8Servos2-I2C 8-servo driver with STM32G031: 8 channels with 5 V power up to 3 A from a single 9-24 V supply.
- You control it over I2C with a choice of 16 addresses
- Servos, power supply and controller are sold separately, a 20 cm Grove cable is included
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Eight servos from one module
M5Stack Unit 8Servos2-I2C controls 8 channels with an STM32G031 microcontroller. You can set each channel as a servo output, an input or digital output, an analog input, RGB LED control or PWM.
You power the module from a 5.5 x 2.1 mm DC jack with a voltage of 9 to 24 V, and the converter supplies the servos with 5 V and up to 3 A in total. It communicates with the controller over I2C, and the knob on the board lets you choose one of 16 addresses from 0x25 to 0x34. The board also measures the current of all the servos and the supply voltages.
Unit 8Servos2-I2C module with 8 servo connectors
8 channels
servo, digital input and output, ADC, RGB or PWM
5 V / 3 A
servo power from the converter, shared by all channels
9-24 V
input voltage from the 5.5 x 2.1 mm DC jack
INA199
measuring the total current drawn by the servos
Botland is an official distributor of the M5Stack module family in Poland. We have extended this system of stackable functional devices with accessories from our range and numerous blog guides. All M5Stack products presented here are original.
Is it right for you?
A good choice if:
- You are building a robot with several servos and want a single power supply
- You want to measure the total current drawn by the servos
- You want to mix servos, buttons and RGB LEDs on one module
Consider another option if:
- You are building a chain of Chain modules: choose the Unit 8Servos2-Chain version
- An older servo driver for an M5Stack controller is enough for you: 8-channel servo driver - M5Stack U165
Fun fact
Two LEDs watch the power
The red LED lights up when the DC jack has more than 8.5 V, and the green one warns when the voltage on the HY2.0-4P port drops below 4.5 V.
Frequently asked questions
What power supply does the Unit 8Servos2-I2C need?
A 9 to 24 V DC power supply with a 5.5 x 2.1 mm plug, positive in the center. The servos get 5 V from the converter.
How many servos can I connect to one module?
Eight, but the total current of all channels is up to 3 A at 5 V.
How many modules can I fit on one I2C bus?
Up to 16, because the knob on the board sets an address from 0x25 to 0x34.
What's in the box
- 1 x Unit 8Servos2-I2C module
- 1 x Grove HY2.0-4P cable 20 cm
Technical specification
| Parameter | Value |
|---|---|
| Manufacturer | M5Stack |
| Manufacturer code | U222 |
| Microcontroller | STM32G031G8U6 |
| Channels | 8, modes: servo, digital input and output, ADC, RGB, PWM |
| Channel connectors | 8x 2.54 mm 3-pin |
| Communication | I2C, addresses 0x25-0x34 (16-position knob) |
| Ports | 2x HY2.0-4P |
| Power supply | 9-24 V DC, 5.5 x 2.1 mm jack, center positive |
| Servo output | 5 V, max. 3 A in total (SY8303AIC converter) |
| Current sensing | INA199A1DCKR with a 10 mΩ resistor |
| Idle current draw | 12 V, 4.56 mA |
| Operating current draw | 12 V, 1.6 A with 8 servos |
| Dimensions | 56 x 24 x 11.5 mm |
| Weight | 11.6 g |
Useful links
| Name | Value |
|---|---|
| Width | 13.8 cm |
| Height | 1.3 cm |
| Depth | 9.3 cm |
| Weight | 0.017 kg |
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30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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Instructions and documents
GPSR data
Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
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