Chip features
Arm cortex-mo.32-bit processor has differential detection and single ended detection
It can accurately detect 1mA unloading current
Support blee5.0 single ended RFIO
The transmitting power can be adjusted in a wide range (- 20 ~ 10dBm), and the receiving sensitivity is strong（ -94dBM@2mbps ~ 103dBM@125kbps ）
Scheme features
Ultra low power consumption
Overcharge prevention
Rich levels, active noise reduction
Pressure touch, high sensitivity, effective touch when touching with water