Faulty Chinese MAX31855K Modules: Fake Chips? No! Just a Capacitor Missing!

They don’t work and I bought the internet “fake chips” stories … ↓↓↓ Complete description, time index and links below ↓↓↓ … so I (unfortunately) made a video about that (link below). Meanwhile I got my hands on a Maxim Integrated MAX31855K engineering sample and it exhibited exactly the same “fault” as the chip on my Chinese module. The solution to this riddle can be found within the MAX31855’s datasheet in a text passage on page 11 (of 13!). There, a “strongly recommended” differential capacitor is mentioned (not included in typical application circuit!). 00:00 Intro – internet wisdom and Maxim engineering samples 01:02 Markings – Maxim sample vs Chinese module vs SparkFun module 02:01 Breakout board – for engineering sample similar to Chinese module 02:23 Behavior – of engineering sample same as Chinese module 03:37 Datasheet – “strongly recommended […] differential capacitor” 04:46 Modified breakout board – with differential capacitor works fine 05:40 Modified Chinese module – with differential capacitor works fine 06:31 Lessons learned – read datasheets to the very end and trust no one 07:43 Wrap-up – rewrote title/description of first video, bye Reviews    • Reviews   Tutorials    • Tutorials   Faulty Chinese MAX31855K Modules: Fake Chips?!? (Edit: No! See Description!)    • Faulty Chinese MAX31855K Modules: Fake Chi...   Mini Mailbag: Breakout PCBs for HB100 Doppler Radar and MAX31855K Module (Reupload!)    • Mini Mailbag: Breakout PCBs for HB100 Dopp...   GitHub / RobTillaart / MAX31855_RT https://github.com/RobTillaart/MAX318... Beware of a fake MAX31855 K Type Thermocouple Sensor Module https://forum.arduino.cc/index.php?to... Fake Chips MAX31855 https://www.mikrocontroller.net/topic... SOLVED: Can't read data form MAX31855 with SPI https://www.esp8266.com/viewtopic.php... OWON P4305 Lab Power Supply Review (1): First Tests, Failure & Teardown    • OWON P4305 Lab Power Supply Review (1): Fi...   OWON P4305 Lab Power Supply Review (2): Reproduce Display Failure – Failed    • OWON P4305 Lab Power Supply Review (2): Re...   OWON P4305 Lab Power Supply (30V/5A) Unboxing and First Impressions    • OWON P4305 Lab Power Supply (30V/5A) Unbox...   #fake #counterfeit #chinese #thermocouple #modules #boards #board #mailbag #postbag #robertssmorgasbord