CMIS-1 ESP32 STEM SDK v1 (Current Monitor IoT Sensors)

£59.00 Inc. VAT

CMIS (Current Monitor IoT Sensors), SDK Kit is based on an Espressif ESP32 WROOM and the board is designed to monitor four fully isolated DC currents up to 100A.

An I2C reversible 2.54mm header is provided in the middle of the board, which will allow an OLED display (such as a SSD1306 I2C), to be directly mounted / connected on the board.  OLED not included.

Large Quality Terminal Blocks are included, which are suitable for 20 AWG up to 6 AWG, 10mm².  These are not populated, so you may optionally solder cable tails directly to the PCB for higher currents.

Power for the board may either be provided via the Micro USB (for flashing, debugging etc.), and/or via a terminal block for normal operation.  DC input has a range of 7V, through to 15V maximum.

The CMIS SDK is suppled fully tested.

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Description

CMIS (Current Monitor IoT Sensors), SDK Kit is based on an Espressif ESP32 WROOM and the board is designed to monitor four fully isolated DC currents up to 100A.

An I2C reversible 2.54mm header is provided in the middle of the board, which will allow an OLED display (such as a SSD1306 I2C), to be directly mounted / connected on the board.  OLED not included.

Large Quality Terminal Blocks are included, which are suitable for 20 AWG up to 6 AWG, 10mm².  These are not populated, so you may optionally solder cable tails directly to the PCB for higher currents.

Power for the board may either be provided via the Micro USB (for flashing, debugging etc.), and/or via a terminal block for normal operation.  DC input has a range of 7V, through to 15V maximum.

The CMIS SDK is suppled fully tested.


Specification overview:

  • Espressif ESP32 WROOM
    • 2.4GHz Wi-Fi and Bluetooth LE MCU module, with dual core CPU
  • AT24C64 EEPROM
    • For storing parameters, calibration data etc.
  • 4 x Isolated Bi-directional Current Sensors AC/DC Maximum ±100A
    • ACS758 100A (ACS758LCB-100B-PFF-T), Hall Effect based, Linear Current Sensor
    • Large Quality Terminal Blocks suitable for 20 AWG up to 6 AWG, 10mm², Rated 52A 300V
  • ADC 12-bit Resolution
    • Using ESP32 Internal ADCs
  • CT Clamp Input
    • With or without Burden Resistor
    • Suitable for popular SCT013 YHDC
  • On-board Temperature Sensor
    • NTC (range -40ºC to +125ºC)
  • USB UART
    • Micro USB.   Uses the popular CH340 for ease of developing code, flashing and debugging
  • OLED Display Connections
    • I2C
  • DC Power LED (red)
  • RGB LED (firmware controlled)
  • SPI and I2C Connections
  • DAC Output
    • with LP/HP filter options (unpopulated R/C)
  • On board 3V3 and 5V LDO Voltage Regulators
    • PCB 7-15V DC Input
  • D1 Mini, Software Compatible
    • No drivers normally needed
  • PCB Size 100mm x 95mm

 

In the Box

CMIS-1 ESP32 STEM SDK v1 is supplied as a Developer Kit PCB.  SMD Populated and Tested.

You will need to update the firmware with your preferred open source firmware, using a standard micro USB cable (not included).  Working examples of test code can be found in our Wiki

  • 1 x CMIS-1 ESP32 STEM SDK v1 Board
    • Fully Tested
  • 4 x Large Terminal Blocks
  • 1 x Small Terminal Blocks
  • 1 x Strip of straight pin header

 

Other Details

Further information may be found in our downloads and Wiki pages

Any other questions, please feel free to contact us.

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