Homebrew Remote Head Update

[Jasonb2909]

Homebrew Remote Head Update

Hey guys those that have made the Arduino remote head display how is it all going?

Ive made it from jaycar here in Australia, using the RS-232 to TTL UART Converter module...cant seem to get the data feed from scanner..matched the baud rates etc..

Any ideas??

Im also using a module that allows you to run just 4 wires from the lcd to board but doesn't seem to work..might need to adjust code.

original thread Homebrew Remotehead for DMA Uniden

 

[mrf1022]

using the RS-232 to TTL UART Converter module...cant seem to get the data feed from scanner

Do you get responses from any commands or are you not getting data from the receiver at all?

using a module that allows you to run just 4 wires from the lcd to board but doesn't seem to work

Are the 4 wires power and ground plus TTL serial or I2C? Do you have the voltages correct?

To troubleshoot:
What Arduino board are you using?
Which wires are going to which pins?
Can you post the Arduino sketch?

 

[mrf1022]

Actually I see in the photo the board on the back of the LCD expects I2C (SDA, SCL). If you’re trying to use the Arduino LiquidCrystal library that won’t work if you are interfacing with the I2C pins.