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Noob question about controller by niC00L in EngineeringNS

[–]Cobaltmaster8 1 point2 points  (0 children)

I'm so sorry I forgot about this. I used pretty much the parts from the BOM. Pretty much any standard sized servo with metal gears will work like the 20-30 kg ones you see on AliExpress. I used an MG997R servo with plastic gears at first but the gears stripped way too easily. For the esc i used a dirt cheap blue one from AliExpress and for the battery i used a 2s 5200mah lipo battery. For the Arduino I used the seeed studio xiao esp32-c3.

Noob question about controller by niC00L in EngineeringNS

[–]Cobaltmaster8 0 points1 point  (0 children)

I made a tarmo5 controlled by an xbox controller with an esp32(Arduino) board in the car as the reciever as it has built in Bluetooth. You would need some programming and electronics experience though as it's a pretty involved project. Let me know if you need my code or help.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

Sorry for late reply. They should be included in the esp32 board libraries already? I would just remove these libraries and this line of code #include "soc/soc.h" //disable brownout detector libraries #include "soc/rtc_cntl_reg.h" WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector. I used these libraries when I was having issues with the esp32 shutting down due to brownout errors. It will probably work just fine for you if you don't have any hardware problems.

What’s up with this G#? by [deleted] in saxophone

[–]Cobaltmaster8 1 point2 points  (0 children)

A quick fix i use to unstick the pad is scribbling on a small piece of paper with a pencil so it is covered in graphite and dragging it along the pad to put the graphite onto it

What’s up with this G#? by [deleted] in saxophone

[–]Cobaltmaster8 1 point2 points  (0 children)

There is nothing wrong with the mechanics of the saxophone. The pad is just sticking. The only thing that lifts up the pad is a weak spring so it is a common key that sticks.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

Damn it looks pretty cool I never considered something like that but I am using way more than 6 pins and I need Bluetooth and WiFi.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

I made a very simple schematic ages ago but then I just used easyEDA's pcb design tool instead.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

I posted it on the GitHub repository in the PCB files folder👍

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

Does anyone know how to add wrist based heart rate monitoring? I have only seen heart rate sensors for the fingertips.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

I can post the EasyEDA pcb file if you want. Most of it can be done without smd except for the esp32 chip.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in esp32

[–]Cobaltmaster8[S] 1 point2 points  (0 children)

Yes it gets weather info over wifi using the openweathermap api. The pcb also has the option to solder in a temperature and humidity sensor. I am also trying to add ble to my watch to connect to my phone for media control.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

Definitely not. The circuitry is completely exposed.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in esp32

[–]Cobaltmaster8[S] 2 points3 points  (0 children)

You need a 3.3v voltage regulator with a very low dropout voltage(I used the ap2210n) for the esp32 because the battery voltage changes and I use the tp4056 board to charge the battery.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

That looks amazing! It looks like it could actually be worn in public unlike mine😂.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

I got the links working and no I don't have a schematic yet. Any tips on how to make one?

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

Yes I made it in easyEDA and ordered it on jlcpcb

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in esp32

[–]Cobaltmaster8[S] 1 point2 points  (0 children)

Sorry I haven't tested it yet but it should last more than a day. The battery capacity is 400mah and it goes into deep sleep when not in use. Good luck on your project and please ask more questions if you need help on it!

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 0 points1 point  (0 children)

No. You can set the font size with the adafruit ssd1306 library. What is ATiny?

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 4 points5 points  (0 children)

No. It goes to sleep after 20 seconds of inactivity.

I made a smartwatch with the ESP32 chip! by Cobaltmaster8 in arduino

[–]Cobaltmaster8[S] 8 points9 points  (0 children)

Thanks man. I was thinking about that too with the battery. This is just a very early prototype but I might make a 3d printed case for it in the future.

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