Phil Sznyck
Member
Hello World. It could be so easy, but its not. I've downloaded 6 different libraries, and read lots of stuff here and on other places - couldn't find a solution:
I want to implement a LCD screen to my project. Bought a cheap 1602 with already soldered i2c board on it. soldered it to my teensy LC, with the resistors from the 3,3v out to each sda (on pin 18) and scl (on pin 19). Not an single example from any library worked. The back light turns on, but basically thats it. Tried changing the power pin to the one giving 5v. nothing changes. Anyone some good advice please? I want to be able to write the infos that where originally given by 4 leds with words using a LCD. the theory sounds so good...
I attached a little schematic of my wiring, maybe here lies the problem, in the way I've connected the resistors?
using the "scanner" example in the "wire" library I've got this output from the serial monitor:
Device found at address 0x27 (MCP23017,MCP23008,PCF8574,LCD16x2,DigoleDisplay)
maybe this helps on finding a way to get it working!
I want to implement a LCD screen to my project. Bought a cheap 1602 with already soldered i2c board on it. soldered it to my teensy LC, with the resistors from the 3,3v out to each sda (on pin 18) and scl (on pin 19). Not an single example from any library worked. The back light turns on, but basically thats it. Tried changing the power pin to the one giving 5v. nothing changes. Anyone some good advice please? I want to be able to write the infos that where originally given by 4 leds with words using a LCD. the theory sounds so good...
I attached a little schematic of my wiring, maybe here lies the problem, in the way I've connected the resistors?
using the "scanner" example in the "wire" library I've got this output from the serial monitor:
Device found at address 0x27 (MCP23017,MCP23008,PCF8574,LCD16x2,DigoleDisplay)
maybe this helps on finding a way to get it working!