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GPIO Controlled Circuit Design
“did what I needed to be done in a timely and cooperative manner”roblen Letzte Woche
Project for Alexander H. -- 2
“Alexander did an excellent job and delivered exactly what I required. His quote for the job was clear and provided excellent detail which demonstrated his understanding and technical knowledge of the project. The job was performed quickly. I am very happy with the results and I will be hiring him again for more work. Thanks again and again.”relevantsystems vor 3 Wochen
Project for Alexander H.
“Alexander is excellent! Alexander has been prompt and professional with all of his deliverables, it is a pleasure working with him and I will most certainly work with him again on all future schematic and PCB designs!”relevantsystems vor 3 Wochen
Raspberry Pi 3 POE Hat board schematic design
“Alexander is an exceptional worker, smart, creative, and dedicated. I am very pleased with the work he provided and the positive attitude he maintained throughout the project. He was also punctual, highly communicative, and mindful of project costs. He was very knowledgeable, helpful, and agreeable to achieve the goals we set for the work he helped with. Alexander was very understanding and helpful in guiding us in the right direction and was able to answer all the questions we had for him. I would highly recommend Alexander to anyone looking for expertise in circuit design.”relevantsystems vor 3 Wochen
Answering couple questions about wireless communication
“His communication skill is ok, but his work is completely horrible, the answers he provides are off topic and 100% copy and paste. He just google the keywords and paste something to it. He didnt even look at the questions and think of the answers. Instead of providing correct answer, what I got is random things. Even as a person who dont konw the correct answer, I can still figure out what he provided is wrong. Dont hire this guy. He is a scam.”brotherofninth vor 1 Monat
Build timer using arduino or raspberry pie run off proximity sensor to read elapsed time
“Great communicator. Got the job done. Thanks!”EdenBrando vor 1 Monat
CO2 GTAW/MIG/MAG welding machine developmentSep 2011 - Feb 2012 (5 months)
The 220V/380V ac input is rectified to get high voltage DC source for feeding welder sufficient power. This DC high voltage will be step down to 20~40V DC output which is the range of voltage used in MIG welding.
CVCF Device developmentOct 2005 - Apr 2006 (6 months)
The input voltage range is 110~230V and the input frequency range is 30~55Hz. The output is stayed in constant voltage 220V and the frequency is remained as 50Hz. The modern inverter technology is used in CVCF.
US English Level 185%
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