It might be easier just to build a sound level front end for the Arduino.
#HACKED SERVO MOTOR ARDUINO DRIVER#
You could pick up signals from the LCD driver chip (on the row of pads) but they will be very hard to decode and may not be simply digital (there aren't many pads so the LCD drive will probably be multiplexed which involves multiple voltage levels).
The LCD will have a row of pads which might be very hard to see. The threads are much smaller than the pcb pads so if you just sandwich the plastic between two rows of pads which are roughly alligned they end up connected. The LCD connects though the plastic to the row of pads on the pcb - the magic is that the plastic contains conducting threads which run from top to bottom but not sideways and are insulated from each other. I'm sorry to say that you've picked a difficult device to hack into - was it cheap - it's surprsingly complex. Due to E14's slightly odd way of hiding things I only blundered into you post today. If you are still working on this I might be able to help. It is like a glass attached to the board through a plastic, but there is no pins on it! there is no pins on LCD, do you know what kind of LDC is that? (pictures uploaded). It is Hobbyking Digital Sound Level (dB) Meter.ĪLSO, out of curiosity, meter's LCD is really weird to me. but I was wrong! I have uploaded the SPL board pictures too.
my initial though was maybe there is a data LCD pin that can help me. I have stared hours on circuit tring to find out how I can connect my SPL meter to arduino. However, I have never done any hardware hacking before, and since there is NO schematics for digital spl meter (specially the model that i own ) I have NO CLUE where is the SPL meter's out put. First I was planning to create an spl meter using arduino but the spl meter that i created was not fast and accurate, since I didnt have much time to work on it I decided to buy a separate, cheap SPL meter and connect it to my arduino. I need to connect an spl meter to an arduino and control a servo motor based on sound pressure detected by spl meter. Hi, I am new to Arduino and Electronics and i need some help with my coding or to be honest need a code i can alter and play with. I am currently working on one arduino spl project.
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