ماژول

Technical Data:
TXD: serial transmit, 3.3V TTL level.
RXD: serial receiver, 3.3V TTL level.
CTS: serial flow control, is not supported.
RTS: serial flow control, is not supported.
DC: simulation, burning clock pin.
DD: simulation, data burning feet.
RST: reset pin module requires low level of not less than 5ms reset.
VCC: module power foot, requiring DC 3.3V power supply current is not less than 100mA.
GND: module common ground.
LED: LEDs module output pin, high output, series resistor connected LED.
Slave bright one second every two seconds. Once connected, LED lit.
KEY:. Input pin, internal pulldown This foot high, clear the record for the host address from the machine.
PIO: extended functionality for setting the module master-slave mode, the default internal pull-up resistor from the machine; external 1K pull-down resistor connected to ground, as the host. Currently only supports 9600bps communication, does not support the AT commands. Host, when pass-through traffic from the machine, there must be a certain time interval between packets. For example, the packet length is 500 bytes, then the transmission time interval between packets can be set to no less than 600ms. Otherwise, you may lose data.

This module uses the newest 2.4ghz transceiver from Nordic Semiconductor, the nrf24l01+. It integrates a complete 2.4ghz RF transceiver, RF synthesizer, and baseband logic including the Enhanced shockburst™ hardware protocol accelerator supporting a high-speed SPI interface for the application controller. The ‘+’ version of the IC has improved range, sensitivity, and data rates. The command set is backward compatible with the original nrf24l01.Worldwide 2.4GHz ISM band operation 250kbps, 1Mbps and 2Mbps on air data rates Ultra low power operation Power supply : 1.9~3.6V Dimension : 12x18mm

Description
Connect your Raspberry Pi to GSM/GPRS cell phone network with this shield. This Raspberry Pi GSM/GPRS shield lets you connect to the internet in the areas where is devoid of Wi-Fi or Ethernet. Quectel M66 module is the heart of this Raspberry Pi add-on. M66 is a quad-band GSM/GRPS module based on the latest 2G chipset which has the optimal performance in SMS & Data transmission and audio service even in harsh environment. You can plug a headset and make a call to someone easily.

Both UART and USB communication with the M66 GSM module is available. The shield can be used easily via easy-to-use AT commands.

The compact form factor, low power consumption and extended temperature make M66 one of the best choices for M2M applications such as wearable devices, automotive, industrial PDA, personal tracking, wireless POS, smart metering, telematics, and more.

Features
Fully compatible with Raspberry Pi models that have the 40-pin GPIO header (3, 2, B+, A+, Zero)
High Data Speed: GPRS Multi-slot class 12, 85.6kbps downlink and 85.6kbps uplink data rates
Quad-band: 850/900/1800/1900MHz
Built-in PCB antenna, also there is an external antenna port available
Supported Protocols: TCP/ UDP/ PPP/ FTP/ HTTP/ SMTP/ CMUX/ SSL
Quectel’s QuecLocator Feature, lets you get the location without GPS/GNSS
Extremely low standby power consumption by M66, 1.3mA at DRX=5
Efficient and low quiescent current regulator circuit can hold up to 3.6A
Bluetooth Function, V3.0 specification, SPP and OPP profiles available.
Micro SIM Card socket can easily reachable on the downside of the shield.
Can be used standalone with PC/Laptop over micro USB, without stacking with Raspberry Pi thanks to FTDI chip on the shield.
Sending/Receiving standard V.25ter AT commands over UART port to Raspberry Pi is available
Working temperature range: -30°C to +80°C

Key Applications
Smart farming sensor
Smart cities sensor
Smart home sensor
Internet of Things (IoT) sensor
Smart door lock
Smart lightning
Smart metering
Bike sharing
Smart parking
Smart city
Security and asset tracking
Home appliances
Agricultural and environmental monitoring

5-18V power supply supported.- Serial USB TTL compatible for 2.85V, 3.3V and 5v signal- GSM, GPRS, GPS {text messaging, data transmission, positioning} triple function.