8 years, 2 months ago.

Si7020 with NUCLEO-F411RE

Hello Kevin,

First of all, thank for develop this lib!

I'm having some issue to run this lib in anothers Plataforms.

Until now I alredy test this lib with 4 Plataforms: - HappyGecko (Silicon Labs) - WonderGecko (Silicon Labs) - K64F (Frescale/NXP) - Nucleo-L152RE (ST) - Nucleo-F411RE (ST)

Just in Silicon Labs Plataforms this lib works, do you know how?

Thank you!

Question relating to:

Device driver for Si7020 Digital humidity and temperature sensor.

1 Answer

8 years, 1 month ago.

It should work on all MBED platforms. I developed the library with the MAXWSNENV platform. Can you show me any of the error text that you're getting?

Hello Kevin, sorry about the delay.

The sensor always return -1. I have a scope, I tested the SDA and SCL pins, sometimes there is signal and another not. Yesterday, I export the program to IAR environment, debug the program and all works with K64F platform, but when I just downloads firmware and Runs nothing works. Another strange thing tha occurs is the clock of I2C not match. In library this is set to 400k. I'm getting a lot of errors in mbed, specially with times, timer and clock, nothing works perfectly. Only in Silicon Labs Platforms works well.

posted by Uilter Witte 14 Feb 2016