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Why WS2812 SK6812 Failures after SMT Soldering? Makerfabs encountered an SMT soldering problem in a small batch PCBA production: the WS2812/SK6812 Failures, What's the problem and how to avoid this kind of problems?

I made a badge: LED lamp for Brilliant Ideas! As a none-electronic fresh at Makerfabs, I am curious about how to make a PCBA board, so I made a simple badge board.

Not only on PCBA design/ PCBA production, and other production service, Makerfabs also helps makers/startups on product certification service, include CE/ UL/ ROHS/ FCC, etc.

The Chinese Spring Festival is around the conner and Makerfabs will be on holiday from 23rd Jan to 9th Feb. 2020.

Recently, Makerfabs made a distance testing for Maduino Lora, we use a Maduino Lora board connected a DHL11 sensor as the Lora Sensor, let's see the result.