EMC2101 - fan and I2C temperature controller - STEMMA QT / Qwiic - Adafruit 4808

Index: ADA-19006 EAN: 5903351245388
Module produced by Adafruit and equipped with EMC2101 chip. Complies with SM Bus 2.0 standard. Enables fan control by PWM pulse width modulator or DAC linear output. It has two built-in temperature monitors - an internal channel and an external channel. Each channel can have a separately declared temperature range, beyond which an interruption occurs or an alert is sent.
EMC2101 - fan and I2C temperature controller - STEMMA QT / Qwiic - Adafruit 4808
€7.57
€6.16 tax excl.
Delivery scheduled for 2022-07-15
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Manufacturer: Adafruit
Compatibility: Arduino Raspberry Pi

Product description: EMC2101 - I2C fan and temperature controller - STEMMA QT / Qwiic - Adafruit 4808

Module produced byAdafruitand equipped withEMC2101chip. It complies withSMBus 2.0standard and allows to control afanusingPWMpulse width modulator orDAClinear output. It has two built-intemperature monitors- controlling the internal channel and the external channel. Each channel can have aseparately declared temperature range, exceeding which causes an interruption or an alert is sent.


Product compatible with Arduino and Raspberry Pi.

Detaileduser's guideand libraries forArduino IDEandCircuitPythonenvironment are available on manufacturer's website, downloadable from GitHub.




Moduł zasilany jest napięcie w zakresie od 3 V do 5 V DC.

The module is powered by a voltage range of 3 V to 5 V DC.

Pinout description of the EMC2101 sensor and controller

  • VIN- supply pin with voltage in the range of 3 V to 5 V DC.
  • 3Vo- supply pin with voltage 3,3 V.
  • GND- system ground pin.
  • SCL- I2C communication interface clock line pin.
  • SDA- I2C communication interface data line pin.
  • ALERT- interrupt pin / 4-pin fan input.
  • TACH- interrupt pin / input to 4-pin fans.
  • FAN- input pin to control 3-pin and 4-pin fans.
  • DN- negative pin of temperature measurement diode.
  • DP- positive pin of temperature measurement diode.

Suggested application

  • Used in GPUs
  • As a simultaneous PWM controller and temperature sensor

Technical specifications of the sensor from Adafruit

  • Chip: EMC2101
  • Supply voltage: 3 V to 5 V DC
  • Maximum current: 1000 µA
  • Temperature monitoring
    • temperature measurement range: from -40°C to 125°C
    • external channel: accuracy of measurement ± 1°C (at 25°C)
    • internal channel: accuracy of measurement ± 2°C
  • Communication interface: I2C
  • Interface address: 0x5C
  • Automatic compensation
  • Resistance error correction
  • Warning of exceeding the declared temperature
  • Compatible with SM Bus
  • Selectable PWM or DAC fan controller output
W skład zestawu wchodzi także listwa goldpin o rastrze 2,54 mm.

The kit also includes a 2.54mm goldpin strip.

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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