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DIY #EEPROM #AT24C02C #LM358 #ONSemiconductor #MCP1501T-25E #MICROCHIP #chip #electronic components #ICGOODFIND #Hardware Engineer WWW.ICGOODFIND.COM

#DIY #EEPROM #24C02 #LM358 #ONSemiconductor #MCP1501 #MICROCHIP #chip #electronic components #ICGOODFIND

Breathing Lights circuit. It Works! LM358

Alex's Dad told us Alex seemed to enjoy assembling our kits.

The 1st time we know Alex was last year in May. He began to try our Metal detector with the help of his father.

Congrats! He could do better and better now!

#diy electronic #soldering kit #lm358 #breathing light

CatalogI OverviewII FeaturesIII ParametersIV FiguresI OverviewThe LM358 includes two independent, high gain, internal frequency compensation double operational amplifiers, and it's suitable for si...

#Operational amplifier #LM358 #circuits

This is simple sensor kit to drive 8 active or passive sensors and log it's data into remote Android application. This system also have an option to activate external device(s) based on specified threshold of sensor data. This sensor controller is mainly build around Raspberry Pi Model 3 B+ and PIC16F877A MCU. PIC16F877A MCU is used to interface/select sensors and it's built-in 10bit multi channel ADC is used to capture the analog signals from sensors.

All the schematics and source codes of this project are available to clone at https://github.com/dilshan/android-datalogger.

#RaspberryPi #pic16f877a #sensor #LM358 #MQ7 #LM35 #ADC #Android #delphi #Node.js #data logger

AF signal injector and tracer

Signal injector and tracer is very useful device when troubleshooting electronic audio equipment. We decided to build this signal injector by inspiring the article available at June 2016 - Everyday Practical Electronics (EPE) Magazine (Audio Signal Injector and Tracer by John Clarke - Page 22 to 29). The signal injector design in EPE magazine is simple but we got few issues while constructing that circuit. The main issue is that LMC6482 is not available to buy in local market. After few months wait we got couple of ICs from eBay for LKR 600.00. The second issue is it’s output is not enough to drive most of the loudspeakers. After prototyping EPE design we decided to build similar sort of signal injector and tracer with commonly available ICs and with more powerful power amplifier stage. For our design we use LM358 operational amplifier IC which is commonly available in local market (for LKR 15 to 20). For the power amplifier we use LM386 low voltage power amplifier IC (which also costs around LKR 10 - 15). Our design is almost similar to EPE design and the only major addition is LM386 AF power amplifier stage.

We build this signal injector and tracer on a single side PCB. Compare with original EPE design this unit consumes more power and it is not designed to drive using a battery. The AM RF demodulator probe (Page 30 - 31 on same magazine) also works well with this unit. In supplied PCB we does not include attenuator circuit and in our prototype we build it using point-to-point wiring method (on top of the selector switch). Our signal injector and tracer schematics and PCB designs are available to download at google drive. For more detailed overview please check the June 2016 issue of Everyday Practical Electronics magazine.

#LM386 #LM358 #LMC6482 #EPE #signal injector #signal tracer