Sparkfun Esp32 Thing Power Control Shield

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  • Part No :
  • WRL-3299
  • Availability:
  • In Stock
  • Shipping :
  • Same Day
  • Weight:
  • 0.045Kg
  • Made By:
  • Sparkfun - USA
  • Mfr.Part.No:
  • DEV-14155
Price:
Rs 2149
(Tax Excl.)
2149.0000 rhydoLABZ.com New In Stock
Quantity :


SparkFun ESP32 Thing Power Control Shield, enables the ESP32 Thing to switch up to 5A of a DC load. With a default voltage range of 5–28V DC, power can be connected to this shield in one of two ways. The first is the barrel connector, but with a maximum current rating of 2.5A (designed for light loads). The second option is on the 3-pin screw terminal, which has connections for VCC, ground and a 5V output. To power the ESP32 Thing and a fan, the supply voltage can be regulated down to 5V. There are three MC33926 motor drivers by NXP Semiconductors. While the board is theoretically capable of switching up to 30A total, the power traces in the board and connectors have only been tested up to 10A total across the six output pins. Along with switching DC loads on and off, the MC33926 has three built-in current sensors, which are connected to output pins 2, 4 and 6. To adjust the gain of each current measurement, each of the current sensors is connected to an LMV358 operational amplifier.

Due to a drawback with the MC33926 only possessing one current sensor per driver, we’ve added a feature to the Power Control Shield for loads smaller than 5A. For smaller loads, clearing the solder jumper and soldering in the appropriate feedback resistors can maximize the sensitivity of the 12-bit analog-to-digital converter (ADC) built into the ESP32 Thing.

Specifications of Sparkfun Esp32 Thing Power Control Shield:

  • Power Control Shield has a voltage range of 5-28VDC
  • Up to 240MHz clock frequency
  • 520kB internal SRAM
  • Integrated 802.11 BGN WiFi transceiver
  • Integrated dual-mode Bluetooth (classic and BLE)


Pacakage includes:

  • 1 x SparkFun ESP32 Thing Power Control Shield

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Sparkfun Esp32 Thing Power Control Shield