This week primarily focused on continued development and debugging of the force-sensitive resistor (FSR) input system for the LumiKeys project. Progress was centered on stabilizing the detection of key presses across a smaller subset of the keyboard, specifically five keys, before scaling to the full system.
FSR Integration and Debugging
- Worked on refining the code for reading and interpreting signals from five FSR strips connected through the analog multiplexer.
- Focused on improving signal reliability and consistency, as initial readings showed noise and occasional false triggers.
- Tested different threshold values and filtering approaches in software to better distinguish intentional key presses from background noise.
- Continued debugging wiring and connection stability to ensure that each FSR input is correctly mapped and independently detected.
System Stability and Validation
- Conducted repeated tests on the five-key setup to verify that key presses are consistently detected and transmitted.
- Identified minor inconsistencies in readings, which are currently being investigated as potential issues related to wiring layout or power distribution.
- Maintained the goal of achieving a stable and reliable baseline before expanding to additional keys.
Schedule
I am slightly behind the ideal timeline due to extended debugging of the FSR inputs, but this step is critical to ensure reliability before scaling to the full keyboard system.
Deliverables for Next Week
- Finalize stable detection for the five FSR keys with minimal noise and false positives.
- Implement improved filtering or smoothing techniques if necessary to enhance signal accuracy.
- Begin scaling the working solution to additional keys once consistent performance is achieved.