Top Positive Review for Development Board,OLED Display on Banggood India|Shopping India

23% OFF 2Pcs LILYGO® TTGO LORA32 868Mhz ESP32 LoRa OLED 0.96 Inch Blue Display bluetooth WIFI ESP-32 Development Board Module With Antenna ₹3,947.11 ₹5,148.67 View It

Overall:

BG224853812 03/04/2021

Good work with Arduino IDE, good quality, and item condition is OK. Antenna is small, but good, also works at a 20-25 meters distance.

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BG381752505 Bangoodwill not publish a complete review in which I wrote that these 868MHz modules are factory defective because they did not pack the output filter properly. 1 capacitor is wrong ( 33pF instead of 3.3pF) and the output filter resonancy is 277MHz instead of 868MHz. The result is an output power of just 3dbm (1.8mW) and an extremely short range! By replacing the capacitor with another correct value the output power increases to 19dbm (80mW). I documented everything nicely, the scheme, pictures, measurements, but bangood doesn't publish my review.
Reply 08/04/2021

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