FCB*NEW*USA. Keypad Analog Shield Kit. For Arduino Raspberry Pi & ESP32.

Description: FCB Electronics Ann Arbor, Michigan, U.S.A. At FCB Electronics, we will only sell & ship HIGHEST QUALITY LEDs. All FCB items ship from U.S.A.FCB ships everyday. USPS is 1-5 day domestic delivery. A creation by US Maker. This item is for 1 set of DIY One Keypad 12 button or 16 button1 pc Keypad 'One Pin' Adapter1 pc 8-pin angled male pin header (soldered)1 pc 3-pin angled female header (soldered)1 pc 3-pin long male header (see bottom) Why buy this DIY project kit?Can be used for Arduino, Raspberry Pi or ESP32.Save precious digital pins on your microcontrollers by eliminating needs for 7 or 8 digital pins to 1 analog pin. Power +5v and ground from your MCU or power source.Due to chips shortage, MCU are scarce and costly. It is simply not so feasible to include keypad in projects if it take 7 or 8 of your digital pins. Basic knowledge of Arduino programming is required. Sample Arduino Codes below (Credit to YouTube HariFun #143) // Filename: Keypad_Trick_Pre.ino// Inspired by Harry Wiguna// Keypad Shield Created by FCB Maker USA #include int thresholds[16] = {22, 85,152,210,260,297,338,375,407,432,459,483,506,523,543,566};char keypad[16] = {'1','2','3','A','4','5','6','B','7','8','9','C','*','0','#','D'};void setup() { Serial.begin(9600);}void loop() { int value = analogRead(A0); Serial.println(value); delay(2000);} // Filename: Keypad_Trick_App.ino// Inspired by Harry Wiguna// Keypad Shield Created by FCB Maker USA #include int thresholds[16] = {22, 85, 152,210,260,297,338,375,407,432,459,483,506,523,543,566};char keypad[16] = {'1','2','3','A','4','5','6','B','7','8','9','C','*','0','#','D'}; void setup() { Serial.begin(9600);}void loop() { int value = analogRead(A0); for (int i=0; i<16; i++) // If A0 close enough to one of the keyboard value? if (abs(value) - thresholds[i] <8 ) { // Yes, translate the index of that value to the key //Serial.println(value); Serial.println(keypad[i]); i = 17; // Wait until they release the button while(analogRead(A0) < 1000) {delay(100);} } }

Price: 4 USD

Location: Ann Arbor, Michigan

End Time: 2023-12-07T13:54:06.000Z

Shipping Cost: 3.5 USD