Operating temperature -30 to 80 Operating Voltage 3.3V-4.2V Power Voltage 3.4V Standby average current 3ma the following Stand by GSM / GPRS Four bands, including 850,900,1800,1900MHZ GPRS Class 10 Sensitivity -105 Support voice calls Stand by SMS SMS Stand by GPRS Data services, the maximum data rate, downloads 85.6Kbps, Upload 42.8Kbps Supports standard GSM07.07,07.05 AT Command and Ai Thinker Extended Command Stand by 2 A serial port, a serial port to download, a AT Command port AT Command supports standard AT and TCP / IP Command interface It supports digital audio and analog audio support HR , FR , EFR , AMR Speech coding Stand by ROHS , FCC , CE , CTA Certification SMT 42PIN Packaging

It is a 75MM X 60MM solar cell. Which has 7.5V / 50MA rating.

The Arduino Motor Shield is based on the L298, which is a dual full-bridge driver designed to drive inductive loads such as relays, solenoids, DC and stepping motors. It lets you drive two DC motors with your Arduino board, controlling the speed and direction of each one independently. You can also measure the motor current absorption of each motor, among other features.

The module (MicroSD Card Adapter) is a Micro SD card reader module, through the file system and the SPI interface driver, MCU to complete the file system to read and write MicroSD card. Arduino users can directly use the Arduino IDE comes with an SD card to complete the library card initialization and read-write.

Specifications Modulation: Analog Torque: 4.8V: 44.00 oz-in (3.17 kg-cm) 6.0V: 57.00 oz-in (4.10 kg-cm) Speed: 4.8V: 0.23 sec/60° 6.0V: 0.19 sec/60° Weight: 1.31 oz (37.0 g) Dimensions: Length:1.57 in (39.9 mm) Width:0.79 in (20.1 mm) Height:1.42 in (36.1 mm) Gear Type: Plastic Rotation/Support: Bushing Rotational Range: 60° Pulse Cycle: 30 ms Pulse Width: 500-3000 µs Connector Type: J

Weight: 55g Dimension: 40.7×19.7×42.9mm Stall torque: 10kg/cm (4.8v); 12kg/cm (6v) Operating speed: 0.23sec/60degree (4.8v); 0.2sec/60degree (6.0v) Operating voltage: 4.8 ~ 6.6v Temperature range: 0- 55deg Gear Type: Metal gear Dead band width: 1us Power Supply: Through External Adapter servo wire length: 32cm Servo Plug: JR (Fits JR and Futaba) servo arms &screws included and fit with Futaba servo arm It’s universal “S” type connector that fits most receivers.

Tiny and lightweight with high output power. Servo can rotate approximately 180 degrees (90 in each direction), and works just like the standard kinds but smaller. You can use any servo code, hardware or library to control these servos. Good for beginners who want to make stuff move without building a motor controller with feedback & gear box, especially since it will fit in small places. It comes with a 3 horns (arms) and hardware. Specifications • Weight: 9 g • Dimension: 22.2 x 11.8 x 31 mm approx. • Stall torque: 1.8 kgf·cm • Operating speed: 0.1 s/60 degree • Operating voltage: 4.8 V (~5V) • Dead band width: 10 µs • Temperature range: 0 ºC – 55 ºC

This sensor sits in line with your water line and contains a pinwheel sensor to measure how much liquid has moved through it. There's an integrated magnetic hall effect sensor that outputs an electrical pulse with every revolution. The hall effect sensor is sealed from the water pipe and allows the sensor to stay safe and dry. The sensor comes with three wires: red (5-24VDC power), black (ground) and yellow (Hall effect pulse output). By counting the pulses from the output of the sensor, you can easily calculate water flow. Each pulse is approximately 2.25 milliliters. Note this isn't a precision sensor, and the pulse rate does vary a bit depending on the flow rate, fluid pressure and sensor orientation. It will need careful calibration if better than 10% precision is required. However, its great for basic measurement tasks!