Final opportunity! Test your Electronics Knowledge now!

September 20, 2017 | 00:00


This is the core circuit of the STM32L0 Discovery kit LoRa B-L072Z-LRWAN1. This development tool helps you learn and develop solutions based in LoRa and FSK/OOK technologies. The all-in-one open module CMWX1ZZABZ-091, powered by the STM32L072CZ microcontroller and the SX1276 receiver, provides ultra-long-range spread spectrum communication, high interference immunity and low power consumption combined with full user accessibility to all STM32L072 peripherals.

By completing the form below you enter a competition to win an STM32 LoRaWAN™ Discovery Board! 

In this section of the module’s schematic we’ve deliberately drawn in some errors. Can you spot them?


Did you spot the errors?

Please submit your answers below:
1. When 5 V is applied to the POWER EXT connection and JP4 is set, ...



2. If powered with 5V and programmed with the applicable source code, the STM32F103CBT6 (U3) will operate correctly



3. The clock circuit for U3 is fine



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