AmplifierControl Automate procedure to switch on/off amplifier and band decode of Kenwood https://github.com/petrlab/AmplifierControl spna An Arduino Single Port Network Analyzer (SPNA) https://github.com/tczerwonka/spna LRDuino In car multi gauge system - STM32, SSD1306, MAX31856, ADXL345...
Connect one of the button pins to pin 11 through a ~ 5 kOhm resistor, and the other pin to ground (GND). Press the button. You can now use ‘digitalWrite’ or other other functions to switch on an LED, relay, adjust PWM duty cycle (for example, increase the brightness of a lamp)...
1 x ($0.36) 10 Pcs 4 Pins Tactile Round Push Button Switch Momentary Tact $0.36 1 x ($1.00) 2Pcs Single Linear Knurled Shaft Volume Rotary Potentiometers 1K Ohm $1.00 4 x ($0.42) SODIAL Potentiometer Single Linear Potentiometer Resistance:10K $1.68 2 x ($0.77) SODIAL Replacement 1.41 i...
The Arduino switch statement takes a single expression.Multiple Arduino case statements act on the expression. Here's the general idea: switch (<expression>) { case 3 : <do action 1>; break; case 4 : <do action 2>; break; default : <do action 3>;} ...
Polling. Example 04: Multiple states from a single push button switch Polling. Example 05: Start and stop an action Part-2-Interrupt-Techniques Interrupt. Example 01: Turning an LED on and off Interrupt. Example 02: Turning an LED on and off with debounce ...
DownloadARD_HM10_AI2_Single_LED_04.aia In part 2 I add a button switch on the Arduino and have 2 way control. Example Project Part 2: Two-way control of an LED In this part we add a switch on the Arduino side so that we can control the LED by a physical switch as well as fr...
*/voidprint_wakeup_touchpad(){touchPin=esp_sleep_get_touchpad_wakeup_status();#ifCONFIG_IDF_TARGET_ESP32switch(touchPin){case0:Serial.println("Touch detected on GPIO 4");break;case1:Serial.println("Touch detected on GPIO 0");break;case2:Serial.println("Touch detected on GPIO 2");break...
Sending single bytes is easy; use Serial.print(byteVal). To send an integer from Arduino you need to send the low and high bytes that make up the integer (see Recipe 2.2 for more on data types). You do this using the lowByte and highByte functions (see Recipe 3.14): Serial.print(...
Arduino Code with Basic Text and Graphics Functions Once the connections are ready you can start programming the Arduino. Whether we use I2C or SPI interface for the OLED display, the code is almost the same. Let's start with installing the necessary libraries. For this tutorial, we will nee...
There are inexpensive Intel-based single-board computers that fit that description, but they won’t fit into an old mint tin, a section of PVC tubing strapped to a pole or a tree, a small robot, or the payload section of a model rocket. An Arduino will. The second constraint is speed...