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I first visually look for shorts/opens, especially on the QFN or QFP and USB (shorts can be easily reworked with the Kester 2331-ZX flux pen; always clean and dry boards after rework; I use isopropyl alcohol and a toothbrush followed by running water)....
The QX5252F comes in TO-94 package, the space between the adjacent legs are very small. So extra care must be taken during soldering. Otherwise, you will short the pins together. In my V2.0 PCB, I have used the TO-94 package footprint, but in V3.0 I...
Hello there!In Christmas I had a little more time to improve DIMER, improvements have been mainly two; motor drivers and two potentiometers to know their position and power programming.Drivers:In Bilbao maker fair another maker told me he had just found...
Once the structure is assembled, and Nunchuk connectors are finished, you'll be ready to wire up the circuits. I used the controll board shield that came along with my robotic arm kit. It makes the connection of the components easier, since it already...
In order to access A4 and A5 of the Arduino, you will need to solder two (2) headers onto the board (at least on my version). I used male right-angle headers to save space.
Open a laptop with the Arduino software (https://www.arduino.cc/en/Main/Software).Download the code from https://github.com/stressmaniac/ELSA or copy the code belowConnect the Arduino to the laptop using the USB 2.0 cable.Press the upload button on the...
OS: Raspberry Pi OS Lite Install the OS Download the lastest OS from https://www.raspberrypi.org/downloads/raspbian/Use Etcher to image a 2GB or larger SD card. Configure Wireless Access https://www.tomshardware.com/reviews/raspberry-pi-headless-setup-how-to,6028.htmlSetup...
=== WebServer Sketch ===// PCF8574 WebServer, listens for /inline?state= // Hari Wiguna, 2016 #include #include #include #include // Declare and set these two variables here or in an include file //const byte credentialCount = 2; //IMPORTANT! Change...
=== WebClient Sketch ===// PCF8574 WebClient, watches buttons and sends /inline?state=x to WebServer // Hari Wiguna, 2016 #include // Declare and set these two variables here or in an include file //const byte credentialCount = 2; //IMPORTANT! Change...
Fortunately the dynamics of the table are not too complicated. Let the state, x, of the table include 2 variables, position and velocity, x and v. Given the relationship dx/dt = v, the state matrix equation is: The only way to control the position...
Open main\bt_app_av.c Replace the function void bt_app_a2d_data_cb(const uint8_t *data, uint32_t len) with the following code: void bt_app_a2d_data_cb(const uint8_t *data, uint32_t len) { size_t bytes_written; uint8_t *mydat = malloc(len); if(mydat ==...
//--------------------------------------------------------------------- // USB Caliper HID // // version 0.1 - incomplete, only caliper read and output to USB // structure in place. Enough to read from Caliper // and output it. //---------------------------------------------------------------------...
Best Budget DIY GPS/GNSS Base Station using the UM980 and a ESP32Introduction The ESP32 is a versatile microcontroller renowned for its WiFi and Bluetooth capabilities. In this guide, we’ll walk you through setting up the your ESP32 development board...
You can find every information about Feather MO Adalogger in: https://learn.adafruit.com/adafruit-feather-m0-adalogger/overview I have used all pins of Feather and I would like to have more pins available. These are the connections of the set: Pin00-...