5Pcs 5V KY-040 Rotary Encoder Module AVR PIC

good one

petit module codeur Arduino cliquable pour un futur montage d’isolateur UV pour pcb avec un vieux scanner. je recommande bien sur !!

muy buena calidad bien envuelto llego antes de tiempo muy contento con la compra precio conveniente sin restar calidad... saludos

Well packaged. Not sure if the plastic bag is anti-static will have to test! Detents have a nice solid feel when shaft is rotated.

Ho comprato questi Encoder rotativi per un progetto di sviluppo il quale prevede l'impiego del modulo Arduino. Il costo è estremamente contenuto e la costruzione dell'oggetto rientra negli standard. Buono il supporto in vetronite e saldature perfette. Prodotto consigliato

This package of 5 pcs arrived in proper time (thanks Priority Direct Mail) with no damages. All work fine, except one, which wasn't welded at the switching pins (only the 2 mounting pins where soldered). Ok, for this price (paid only 89 cents per each), so very satisfied (this 5 welding points are quick done). Hint: always check for bad or undone soldering on this articles ...

Bonne qualité de fabrication matériel conforme.

I'm not used in real project but the test are ok.

Neat little item, again Banggood delivers on all their products, Cheap value for money, great stuff BG

Like them and are cheap. For Arduino used the following code based on what can be found athttp://www.buxtronix.net/2011/10/rotary-encoders-done-properly.html Please not it includes a correction in the table as could be found in one of the comments. That is essential. Also connect the 5V, essential as well: #define ROTARY_PIN1a 9 // DT #define ROTARY_PIN1b 10 //CLK // algorithm constants #define DIR_CCW 0x10 #define DIR_CW 0x20 // Use the full-step state table (emits a code at 00 only) const unsigned char ttable[7][4] = { {0x00, 0x02, 0x04, 0x00}, {0x03, 0x00, 0x01, 0x10}, {0x03, 0x02, 0x00, 0x00}, {0x03, 0x02, 0x01, 0x00}, {0x06, 0x00, 0x04, 0x00}, {0x06, 0x05, 0x00, 0x20}, {0x06, 0x05, 0x04, 0x00}, }; /* Read input pins and process for events. Call this either from a * loop or an interrupt (eg pin change or timer). * * Returns 0 on no event, otherwise 0x20 or 0x10 depending on the direction. */ unsigned char rotary_process1() { unsigned char pinstate = (digitalRead(ROTARY_PIN1b) << 1) | digitalRead(ROTARY_PIN1a); state1 = ttable[state1 & 0xf][pinstate]; return (state1 & 0x30); } volatile unsigned char state1 = 0; int rot1 = 0; // ------------------------ In setup(): pinMode(ROTARY_PIN1a, INPUT); pinMode(ROTARY_PIN1b, INPUT); // ------------------------ In loop() rot_result = rotary_process1(); if (rot_result) { rot1 += (rot_result == DIR_CCW ? -1 : 1); }