ESP8266 Community Forum

- Fri Jan 06, 2017 7:58 am #60535 Hi,

I am working on ESP8266 basic and want to implemenation I2C functionality
the I2C chip I am using is 24c32
We have written a code which is able to scan the device address but I am unable to read and wrtie to the device.
Kindly help us with the same

Code: Select allcls

button "i2c Find" [I2C_find]
button "i2c Read" [I2C_read]
button "i2c Write" [I2C_Write]
wait

[I2C_find]
for address = 1 to 127
   i2c.begin(address)
   stat = i2c.end()

   if stat < 1 then
     ' print stat
      wprint "Found I2C device at address: 0x" & hex(address)
      wprint " - > " & address
      wprint " <br>"
      got_address = address
endif
next
wait

[I2C_Write]
 i2c.begin(got_address)
 i2c.write(0)
 delay 5
 i2c.write(150)
 i2c.end()
wprint "write complete"
wait

[I2C_read]
  i2c.begin(got_address)
  i2c.write(0)
  i2c.end()

  i2c.begin(got_address)
  i2c.requestfrom(got_address,1)
delay 5
i2c_read = i2c.read()
i2c.end()   
print  i2c_read
wprint "read complete"
wait

Thanks and regards.
SIddharth