Brand Name:icchipcn.com
Condition:New
Type:Voltage Regulator
Model Number:MW
Application:Computer
Supply Voltage:1
Dissipation Power:1
is_customized:Yes
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Use an analog port to read the five key states for save IO port. With sensor expansion board can be completed and buttons of interactive works.
for Aruino test code:
/ / ADKeyboard Module
int adc_key_val [5] = 50, 200, 400, 600, 800;
int NUM_KEYS = 5;
int adc_key_in;
int key = -1;
int oldkey = -1;
void setup ()
pinMode (13, OUTPUT); / / we'll use the debug LED to output a heartbeat
Serial.begin (9600); / / 9600 bps
void loop ()
adc_key_in = analogRead (0); / / read the value from the sensor
digitalWrite (13, LOW);
key = get_key (adc_key_in); / / convert into key press
if (key! = oldkey) / / if keypress is detected
delay (50); / / wait for debounce time
adc_key_in = analogRead (0); / / read the value from the sensor
key = get_key (adc_key_in); / / convert into key press
if (key! = oldkey)
oldkey = key;
if (key> = 0)
digitalWrite (13, HIGH);
switch (key)
case 0: Serial.println ("S1 OK");
break;
case 1: Serial.println ("S2 OK");
break;
case 2: Serial.println ("S3 OK");
break;
case 3: Serial.println ("S4 OK");
break;
case 4: Serial.println ("S5 OK");
break;
delay (100);
/ / Convert ADC value to key number
int get_key (unsigned int input)
int k;
for (k = 0; k
if (input
return k;
if (k> = NUM_KEYS) k = -1; / / No valid key pressed
return k;
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Working Days Depend On Destination;if The Order Quantity Is Large, We May Ship By Sea Container And The Best Ship Way Is By Sea,
Shipping Days: Over 20 Working Days Depend On Destination Port.
Q6:what Packing Do You Use?
A: Neutral Package With Airbag Or Customized Package.
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