In the use of fingerprint module,  to judge recognition experience is good or not, recognition speed, acquisition area, resolution, service life, security, software support type, tolerance, anti-static performance are the key indicators of fingerprint recognition.

Too small acquisition area will make the accuracy of fingerprint recognition drop significantly. It is for this reason that Zhongyinyun's fingerprint module solution uses a 160*160 pixel array. Compared with some traditional fingerprint module 60 * 80, 96 * 112 and other small area matrix products, its role in the accuracy of fingerprint recognition is self-evident.

The magical TOF technology has started to appear frequently in construction, automation, automotive manufacturing, warehousing and logistics, smart driving, robotics, smart home, smart TV, smart security and VR/AR.

The 5G era promotes IoT applications, which brings the demand for 3D sensing capability for various smart devices.TOF will become the mainstream distance sensing solution with its cost advantage and excellent real-time sensing capability.

As a result, Jnchip (Hong Kong) has come up with a distance measurement technology (ToF) solution based on market demand, let's take a look.

 

Li-ion battery and USB charging are common charging methods used in portable devices. Charging control and safety protection are the focus and they require accurate voltage detection within ±1%. Typically, most solutions use dedicated Li-ion battery charge management chips, involving additional cost and complexity. With the RA2A1 microcontroller and its high-precision analog processing capability, it integrates Li-ion battery charge and discharge management to precisely monitor and manage voltage and current.
This design features a 500mAHr Li-ion battery with the following charging functions:

5V PWM control and LC filtering circuit (controlled DCDC buck circuit)

Battery and USB/LDO voltage monitoring

Battery charge current monitoring

Battery temperature monitoring