I had most of my part assembled last weekend, turned out gears meshed pretty well to each other, all critical parts are successfully soldered on board without taking any damage.
there are still couple 0603 resistor and 1206 100us tatanlum resistor need to solder, nothing much left, Mouse will be[……]
Since pulse controlled are getting pretty popular these days, emitter need to be turned on with a current higher than forward current at a relatively short time period. Usually, the turn on time is under 100us in order to make receiver receive sufficient reflection light. Some people like Ng Beng Ki[……]
For those who use arduino before must know the function micros() returns system time in microseconds. AVR based arduinos use TIMER0 in MCU(such as ATMEGA328) to track system time. For cortex arm M0/M3/M4 processor, the most common way is to use systick to count system time. Typically people need sys[……]
I got my PCB for both my mouse and FTDI, lipo charge board delivered.
Can’t wait to get everything assembled.
bought 10 each and got 11 for each, buy 10 get one free 🙂
top 2 are FTDI board, the bottom ones are Lipo chargers
mount motor mount onto Green Giant V2.2, along with sensor moun[……]
I received some new ball bearings last week since my old ball bearings bought last year wore already.
In order to simplify the the ball bearing install difficulty, I used 1 flanged 2×5 flanged ball bearing and 2 non-flanged ball bearings for each wheel. In this case, a perfect size spacer is no l[……]
I am testing nested interrupt recently on my STM32 dev board in order to ensure the relationships between nested interrupts are clear for me. I’ve read lots of sample codes online but never tried on my own since I only used systick and timer based encoder interrupt last year.
before set up the pr[……]
For those who know successfully downloaded code to STM32 through built in ISP must remember that you have to hold boot0 button(assume boot1 is already pulled down) then press reset button then release reset button in order to switch to ISP mode for stm32 to download code into flash. To be honest, I[……]
I updated my design for my lite version micromouse recently, and I successfully added way more components than I expected to this PCB design, now it’s named as ‘super lite'(SL)[……]
I got chance to salvage my old fauhalber 1717t motor from my mouse last year so I don’t need to purchase new one. All the holes for shaft and mounting are 2mm diameter and fit well with M2 screws.
However, the shape I designed to perfectly fit motor is a little smaller than it supposed to be.[……]
I finally submitted my PCB design to fabrication company this Monday after being lazy for the entire winter. Differ from by previous plan, I decided not to fabricate my 4 wheel half size micromouse due to budget and time limitation.
Green Giant V2.2
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