Lastest ESP32 Version: REV1
2.7″ePaper board consisting of ESP32-D0WDQ6, I2S DAC MAX98357A, and one pcs I2S MEMS microphone ICS43434
Single channel, Class-D amplifier embedded DAC, MAX98357 is connected to ESP32 through I2S bus.
MEMS microphone Invensense ICS-43434 is connected to ESP32 through I2S bus.
On-board USB-UART interface (CP2102) with several glue logic for direct binary uploading.
4 MB Flash
500mA Battery Management
LED indicator: There are 4 LEDs show the battery status in real time.
Power button: Click one time will start. Fast click 2 times will shut down.
2.7″ ePaper module 264*176 pixels,
Protection: Short protection. Over charging protection. Overflowing
button changed (IO37, IO38, IO39)
Display size (mm)
Outline Dimension (mm)
Full Refresh Time (s)
Partial Refresh Time (s)
red, black, white
57.29 × 38.19
70.4 × 45.8