chanut.thomas

Yes 5 second for blocking double click. You could adapt the delay. I pass this time to 20 second for my cat after few days of use.

Good idea, and good work ;)Hope you win something on this contest.

I keep my eyes open if you need help for build your own. 😉

Electronic Component Upcycling Contest

Thank you :-)

You could find some informations about RGB panel here https://www.sparkfun.com/news/2650Adafruit could give informations too https://learn.adafruit.com/32x16-32x32-rgb-led-mat...Biggest problem for me when I started is for found and understand the library. I recommend to look the source code for known the potential.You could display pictures and others animations, RGB panels have good renderer for cheap prize.

Hi I update my last project TrigonoDuino. Now it's very complete instructables :-)Could you look this for featured this project ?

Great job again, good idea, good project, good design, but I have some questions this time.Why didn't incorporate a litlle li-ion battery like samsung tablet battery (26Wh for ~2h45 autonomy)?Why not use analogic sticks with arduino (PS1 emulation for example)? Why not use only one analogic pin for controlling all buttons with resistors (potential noise problem?)?

Well library I used could'nt work with scan because creator only use A B C and D.But I see an other library, https://wiki.dfrobot.com/64x64_RGB_LED_Matrix_-_3mm_pitch_SKU_DFR0499https://github.com/DFRobot/DFRobot_RGBMatrixYou just need to add one dupont wire between E and A4 (arduino pin) and replace matrix constructor by thiscommand seems to be the same for control panel like print or filscreen.#define E A4#define WIDTH 64#define HIGH 64DFRobot_RGBMatrix matrix(A, B, C, D, E, CLK, LAT, OE, true, WIDTH, HIGH);//or false

With this transistor hFe need to be 110 < hFe < 800 it's depend of the classification.Ic = (Vcc - Vce) / Relay = 0.0326 ADatasheet condition: IC=10mA, IB=0.5mA so for you Ib=1.5mAFor safety use 80% of Ib = 1.2 mARb = Vin / 0.0012 If Vin = 3V then Rb = 2.5 kOhmMaybe trying some values for testing.

I find it. It's in french but calculate is same for all.https://www.google.com/url?sa=t&source=web&rct=j&url=https://wiki.mdl29.net/lib/exe/fetch.php%3Fmedia%3Delec:cours_transistor.pdf&ved=2ahUKEwi0ms-1mMPoAhVJXBoKHbViBcMQFjABegQIDhAG&usg=AOvVaw0VMxCTHIckzhEHb39XGIUF

Servo motor could be drive by microcontroller board like arduino or other stm32. For dc motors use your H bridge L293D normally you could drive both. Some schematics already exist, I make my own board with a L293D and it's not too hard for use it.https://www.instructables.com/How-to-use-the-L293D-Motor-Driver-Arduino-Tutorial/https://www.instructables.com/Arduino-Servo-Motors/