Low power electronic shelf labels

The average power consumption of this solution during standby is < 1 μA, and it can maintain standby state with low power consumption, and the data is still maintained when the power is turned off. This solution uses the LoRa transmission protocol to implement wireless update data function. Any host device can send data through the LoRa host module to update the electronic paper display content.

• Program features
  

  -	The average power consumption of ML51 in standby is < 1 μA
  -	The e-paper update driver adopts SPI interface
  -	The content of the update data sent by the LoRa host module
  -	Can maintain standby state with low power consumption
  -	Data is still retained after power failure

• MCU Features
  

  ML51  (8-bit 1T 8051)
  -	Working voltage: 1.8 V ~ 5.5 V
  -	Operating frequency: 4 MHz ~ 24 MHz
  -	Operating temperature: - 40 °C ~ + 105 °C
  -	ESD: 8kV
  -	EFT: 4 kV

• System diagram