Four connected on the single chip microcomputer BH1750-CodePudding

Now a BH1750 is able to realize, but four BH1750 just don't know how to do it, who can some directions!

CodePudding user response:

A digital tube display and eight digital tube display

CodePudding user response:

reference & wind @ 鬺 % response:

now a BH1750 is able to realize, but four BH1750 don't know what to do, who can some directions!

Four BH1750 SCL and SDA can be parallel, single-chip 4 IO mouth ADDR, using four BH1750 ADDR can be read separately, such as read the no. 1, no. 1 of the ADDR to one (or zero), the remaining three ADDR 0 (or one) and send the corresponding address code 0 xb9 (or 0 x47) data can be read no. 1,

CodePudding user response:

refer to the second floor of a tree may reply:

Quote: reference & wind @ 鬺 % response:

Now a BH1750 is able to realize, but four BH1750 just don't know how to do it, who can some directions!

Four BH1750 SCL and SDA can be parallel, single-chip 4 IO mouth ADDR, using four BH1750 ADDR can be read separately, such as read the no. 1, no. 1 of the ADDR to one (or zero), the remaining three ADDR 0 (or one) and send the corresponding address code 0 xb9 (or 0 x47) data can be read 1,

Please use ADDR, BH1750 isn't as long as the ADDR, SCL and SDA three will do

CodePudding user response:

A BH1750 building Lord answered a few pin?

CodePudding user response:

Has been solved, thank you