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PGA308产品调试总是检测不到压力信号

Other Parts Discussed in Thread: PGA308, MULTI-CAL-SYSTEM

 T1和T2的接线如图。这个接线不知道是否正确

原理图 port1port2 port3 GND分别与开发板 ONE WIRE、XTR +LOOP、XTR -LOOP、ads1 Vin-。校准是总是出现检测不到压力信号。传感器接线正确呀。请高手指点。

我的QQ445745758希望高手加我谢谢