Blog - All Comments

RE: ESP32-S3, SX1262 LoRa with Duty Cycle, Wake on Radio, and Deep Sleep

shabaz — Sat, 30 Aug 2025 20:37:20 GMT

Interesting module.. even has a built-in display!

I've tried one or two smaller/simpler eByte modules in the past; they make nice stuff.

RE: Arduino Uno Pololu VNH 5019 Motor Shield using 2 Motors and 1 Joystick and 2 Xbee for wireless communication

DAB — Tue, 24 Jun 2025 19:01:56 GMT

No video and none of the links are active.

RE: Pedro Robot

shabaz — Sun, 09 Mar 2025 00:07:52 GMT

Hi,

I've got a few small suggestions that may be worth resolving. The nets indicated below with a red arrow have no label against them, so it's not possible to tell what is the VCC net (3.3V or 5V) and what the other net is. Please can you add net labels there, or, even better, a supply symbol.

The blue arrows show 220 ohm resistors, and the current draw will be at least 15 mA (if you're using 3.3V for VCC, otherwise it will be higher current), and while on it's own that may not be too bad, if someone presses multiple buttons, that current draw will rise significantly. It would be good to change those resistors to (say) 10k, or you may be able to remove them entirely, if that Arduino supports internal pull-down (I don't know if it does; a pull-up arrangement could be better, and have the switches connected to ground instead of VCC).

The green arrows show the supply connections to the servos. There could be a risk of burning out the servo motors, if something prevents the servo from moving (this can be quite likely with a robot arm project, where a user might try to pick or move something too heavy). One solution is better servo's, but they can be expensive. Another solution might be to put something like a polyfuse in series with the supply connection per servo, however you'd need to try it, to see what works. You could use a normal non-resettable fuse, but that would be annoying for users since they may blow frequently.

RE: Pedro Robot

Cliffyd43 — Fri, 07 Mar 2025 22:33:02 GMT

Very cool

RE: Pedro Robot

DAB — Tue, 04 Mar 2025 20:23:05 GMT

Interesting project.

RE: Using H450 (Toshiba TB67H450) Motor Driver Boards with Arduino

Lu_ — Sun, 09 Feb 2025 01:07:03 GMT

Hi shabaz i am trying to get the kikad file for the h450 module where I could get it??

RE: Little work [Hey, smile ]

DAB — Thu, 12 Sep 2024 18:17:18 GMT

Nice fun little project.

RE: Arduino UNO R4 WIFI - Remote Weather Station Demo

papavask — Tue, 20 Aug 2024 15:04:41 GMT

Great demo !!!!

RE: Integrating Arduino with MQTT for IoT Applications

shabaz — Tue, 30 Jul 2024 08:50:28 GMT

Reads like an AI generated article. Where are the schematics and code?

RE: Adding more Storage to an Arduino: Using 8-pin SPI Flash Memory Chips

shabaz — Wed, 10 Jul 2024 16:45:29 GMT

I find it hard to mentally visualize memory locations, so I created a simple memory map that can be printed from the web browser.

RE: Adding more Storage to an Arduino: Using 8-pin SPI Flash Memory Chips

embeddedguy — Wed, 10 Jul 2024 10:27:32 GMT

Cool stuff. your SPI Flash dangerously needs some space.!

But useful to store some data such as WiFi AP, BLE and other connection related informations.

RE: Working router with PoE support

DAB — Tue, 09 Jul 2024 18:49:23 GMT

Details?

Someone might want to copy your accomplishment.

RE: Control 28BYJ-48 Stepper Motor with ULN2003 Driver and Arduino

genebren — Fri, 05 Jul 2024 15:43:48 GMT

This sure looks like a copy of some posts from the PlayWithCircuits.com site. Are you plagiarizing or trying to promote another website?

RE: How to Control 28BYJ-48 Stepper Motor with ULN2003 Driver and Arduino

genebren — Fri, 05 Jul 2024 15:18:50 GMT

This sure looks like a copy of some posts from the PlayWithCircuits.com site. Are you plagiarizing or trying to promote another website?

RE: Control 28BYJ-48 Stepper Motor with ULN2003 Driver and Arduino

neilk — Fri, 05 Jul 2024 12:50:29 GMT

Nice post.