- Thu Feb 04, 2016 6:49 am
#40401
Dear All,
I would like to ask your opinion about the following case:
1. I purchased 10 of e-12 from Bangood, and flashed to nodemcu fw. I use some i2c sensors, like am2320, bmp180 to collect data. I have defined gpio4 and gpio5 for clock and data, and all of 10 works fine.
2. I purchased 10 of e-12 from Ebay, and followed the same way. But I can not use gpio4 and gpio5 for i2c - does not work, the modules report failure.
if I use - in the 2nd case - the gpio12, gpio13 for i2c, it works fine..... but not with gpio4,5
Is it possible, that something different in the design, part, of simply the second package is damaged? I tried 2 of e-12 in the second case, with the same result...
Any idea how to fix it?
thank you in advance for you comments!
best regards!
Richie
I would like to ask your opinion about the following case:
1. I purchased 10 of e-12 from Bangood, and flashed to nodemcu fw. I use some i2c sensors, like am2320, bmp180 to collect data. I have defined gpio4 and gpio5 for clock and data, and all of 10 works fine.
2. I purchased 10 of e-12 from Ebay, and followed the same way. But I can not use gpio4 and gpio5 for i2c - does not work, the modules report failure.
if I use - in the 2nd case - the gpio12, gpio13 for i2c, it works fine..... but not with gpio4,5
Is it possible, that something different in the design, part, of simply the second package is damaged? I tried 2 of e-12 in the second case, with the same result...
Any idea how to fix it?
thank you in advance for you comments!
best regards!
Richie
