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Showing results for tags 'esi'.
My ESI project entry should be a fairly simple one. The first sentence describing the ESI is as follows: "The Extended Scan Interface (ESI) peripheral automatically scans sensors and measures linear or rotational motion." Luckily that's exactly what I'll be doing. I won't be pushing the ESI to its limits or bending it to some cool new purpose. However that should mean that I'll be able to get a clear idea of what the ESI does and how to use it properly. My project is to measure the flow and temperature of the coolant in my laser cutter. It's one of the cheap DC-K40 ones that you see all ove
Thanks to an extended road trip (6000 miles) and receiving pieces for another project in the mail (hello dAISy), I'm a bit late with starting my ESI project log. But here we go. My project is to detect touch patterns on a resistive touchscreen, e.g. to wake up or unlock a device. My idea is inspired by figure 28-19 on page 772 of the MSP430FR69xx User's Guide: The picture reminds me of the circuit for resistive touchscreens: I plan to approach the project in 3 stages of incremental functionality but also difficulty: Detecting touch while ignoring touch location. This shoul
Recently there was a contest for applications using TI's ESI hardware rotation/flow sensing peripheral, I was one of the winners of that. Actually TI did a pretty cool thing and gave the prize (target board and programmer) to everybody who entered rather than just their favorite five. Go TI! In any event, here is product pitch I submitted: I also submitted a more advanced version that ties into the fuel injectors and computes instant and average mileage, but I may or may not get to that in a reasonable time period. This is my project thread for this project, if you hadn't gues
I have been interested in making a servo motor controller. I wanted a microcontroller with a hardware quadrature encoder so when TI had a call for projects utilizing the Extended Scan Interface of the MSP430FR6989, I thought this might be a good fit. Servo motors have several advantages over stepper motors including increased torque, lower power consumption, feedback control to eliminate missed steps. The problem is that servo motors are rather expensive compared to stepper motors. I obtained several surplus double-shafted, coreless DC motors with planetary gearboxes for $14. They turn eas