Power supply: 3.6 V to 6 V connected to the VCC pin; Communication leads work with 3.3 V (tolerate 5 V) Power consumption: approx. 50 mA; Class 2 - transmitter power max. + 4 dBm; Range: up to 10 m; Password for pairing: 1234; Standard: Bluetooth 2.0 + EDR; SPP profile with settings via AT commands; Communication: UART (RX, TX) Small dimensions: 37 x 16 mm The MKR GSM library can be installed using the Arduino library manager. With the Arduino MKR GSM 1400 and this library you can do most of the operations you can do with a GSM phone: place and receive voice calls, send and receive SMS, and connect to the internet over a GPRS network. The on board module, operates in 3G with a 2G fallback. Pair with the HC-05 module by providing the correct passcode – 0000 is the default one. Once you've got blink running you're ready for the next step! *miam* I like the taste of cookie crisps *miam*, variable c can store a single char..... not a string. You may not see the Arduino within your Bluetooth devices on your phone, but don't worry, this isn't how you'll be connecting to the device ... Arduino Mega Rev3 Arduino #A000069 The Mega2560 is based on the ATmega2560 chip and has 54 digital input / output pins (15 of which can be used for PWM), 16 analog input pins, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection , a power jack, an ICSP head 10 voor € 37, 20 p.s. 25 voor € 36 p.s. 50 voor € 34, 80 ...