Coupon Codes & Promos

Coupon codes allow you to save some money on your purchases, so I’ll try to keep this page up-to-date with some useful coupons for specific shops. If you are not familiar with online shopping via Chinese based websites, you  may consider reading my Chinese online stores shopping guide beforehand.


Purchase single board computers and accessories on Ameridroid with the following coupons:

  • CNXSUPPORTER1 ($1 off $10+ order)
  • CNXSUPPORTER5 ($5 off $50+ order)
  • CNXSUPPORTER10 ($10 off $100+ order)

AVNet Giveaway

Bluetooth Low Energy Multi-sensor Development Board Giveaway

Complete and submit this form and stand to win a ON Semiconductor RSL10-SENSE-GEVK board.


Some discount on dfrobot @

  • Fingertip reader – 18.90 USD
  • FireBeetle ESP8266 IOT – 4.90 USD
  • Arduino Nano with Bluetooth 4.0 – 12 USD
  • FireBeetle ESP32 IOT – 9.90 USD
  • Begginer Arduino kit – 30  USD


For more deals and coupons, please checkout GearBest coupons & promotions spreadsheet.


GeekBuying has also published a spreadsheet with coupons that they’ll be updating regularly.


Price-down page with some potentially interesting discounts.

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