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AI Thinker A9G GSM/GPRS+GPS module
AI Thinker A9G GSM/GPRS + GPS module with quad-band 2G support, SMS, voice, data, and real-time location tracking—ideal for IoT, vehicle tracking, and monitoring projects.
The AI Thinker A9G GSM/GPRS + GPS Module is a compact, low-power communication module that integrates 2G GSM/GPRS connectivity with GPS positioning in a single board. Designed for IoT, tracking, and remote monitoring applications, the A9G offers reliable voice, SMS, data transmission, and real-time location tracking.
The module supports quad-band GSM (850/900/1800/1900 MHz), ensuring wide network compatibility. Its integrated GPS receiver provides accurate latitude and longitude data, making it ideal for vehicle tracking, asset monitoring, wearable devices, and emergency systems.
With UART serial communication, the A9G module is easy to interface with popular microcontrollers such as Arduino, ESP32, STM32, and Raspberry Pi. Its low power consumption and small form factor make it perfect for battery-powered and embedded applications.

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Potentiometer Sensor Module
TB6560 4 Axis Cnc Controller 4 Axis Stepper Motor Driver DSP Controlled 3.5A 24V
- Rated maximum output: ± 4.5A, 40V, Peak 5A, low output impedance, source 0.5?,
- the receiving end of 0.4?, low voltage shutdown, thermal parking and circulation.
- circuit protection. After I design, you can set the current output of 0.5A 1A 1.8A 2.5A.
- 3.3A 4A 4.5A to accommodate more and different motor Current.
- The drive is suitable software mach2, mach3, (mach3 have support WIN7 system), KCAM4 like.
Text to Speech TTL Module (Serial to Speech)
- Single row 0.1″ header for easy connection to a host system
- Power requirements: +5 VDC
- 30 mA idle
- 46-220 mA active (depending on speech parameters and output load)
- Communication: Asynchronous 9600 bps serial (8N1)
- Dimensions: 1.25″x1.5″x0.37″
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Text support rate is better
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Interface operation is simpler
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5V single power supply.
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Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
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Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
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Voice effect optimization
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Module miniaturization and easy integration
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Dimension: 33*27.5mm
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With mounting holes

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