Operation Amplifier Module lm358
OP-AMP module
Main Features:
On-board LM358 chip
100 times gain circuit design
On-board 10k adjustable resistance, adjustable magnification
On-board power indicator light
The main pin are educed, can directly input and output signals
Working voltage: 5V -12V
7pcs push button 6x6x5 سويتش يعمل بالضغطة صغير عدد7
MT8870 DTMF Module لتمييز صوت أرقام الهاتف
ULN2803 Darlington Transistor array IC 











