New RPEM Remote Power Energy Monitor SDK

RPEM v1 is a STEM project, providing a flexible Remote Power Energy Monitor SDK for your Green Solar/Wind/Battery/Inverter Energy System.

This is a new product for May 2022.  The production PCBs have been ordered, where they will then be populated, tested and expected to be in stock late in June.

Update 21st July.  Have running issues with provision of a couple of parts, due to Worldwide component shortages.  This board is being currently being redesigned and an update expected in a couple of weeks.

  • The SDK Kit is available:
    • RPEM-1-C with four x SMT current clamp 3.5mm sockets mounted.
    • RPEM-1-V without the sockets, for four x voltage monitoring.

RPEM v1 Main Integrated Features

  • Core
    • ESP-12S MCU
    • EEPROM 27C64 (64kbit | 8K x 8bit)
    • ADC ADS7828 (12-Bit 8-Channel Sampling)
    • On-Board 3V3 (1A) and 5V (100mA) LDO Regulators
    • 6-15V DC Input Supply
  • Inputs
    • 4 x CT Current Clamp (3.5mm Sockets), or Voltage (Pads)
      • NB. If you remove the 22R resistor(s), mixed DC Current and Voltage inputs can be configured.
    • On-board NTC (Temperature)
    • On-Board DC Input Voltage Monitor
    • Opto Reader (Meter Pulse Reader / Expansion)
  • Outputs
    • FET Driver (Max 100V / 1.5A)
    • Status LED
    • Power LED (3V3)
    • OLED Display Support (I2C Dual Headers)
  • Communication
    • USB UART (Micro / Flashing / Debugging / Config)
    • RS485 (Monitoring / Expansion)
    • I2C (Expansion)

The RPEM SDK has been designed to be as flexible as possible for integration of the Solar/Wind Battery Home System to Home Automation.