When purchasing a pyroelectric infrared sensor, it is necessary to inspect it for initial defects within the warranty period.
Therefore, we created an acceptance inspection system that confirms the operation of the relevant parts without soldering.​
 

The rough inspection procedure is as follows.
1. Connect the component to the electronic circuit on the breadboard with a lead wire.
2. Connect the electronic circuit with a lead wire to the GPIO board of the extremely small computer Raspberry Pi Zero.
3. Execute a simple Python program on Raspberry Pi Zero.
4. If you place your hand over the part and the LED lights up, the part is operating normally.

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Currently, this system has completed the acceptance inspection of the following two types of motion sensors.
・Pyroelectric infrared sensor module (pyromotion sensor) [SB612A(2019)]
・Pyroelectric infrared sensor PaPIRs(VZ) 12m EKMC1603113

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I referred to many related sites this time, but it became an inspection program corresponding to the electronic circuit that was originally configured.
An example of a Python inspection program is shown in Fig. 3 and its execution result is shown in Fig. 4.
 

Created August 20, 2020

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