Buy Original AI-thinker A9 GPRS + GSM SMS Voice Wireless Data Transmission Module wholesale price
Overview:
1. The A9 development board is a multi-function development board based on the Axin A9G GPRS/GSM module, which can be used to verify the basic communication functions and peripheral functions of the A9 module.
2. A9 development board has basic telephone/sms, GPRS network communication.
3. A9 development board contains lithium battery charge management, microphone, speaker interface, USB communication interface, multiple user buttons / led, TF card slot, acceleration sensor, SPI interface, I2C2 interface, ADC interface.
4. Pudding series development board camera expansion board, can be connected to 30W/200W camera.
5. A9 development board slot machine expansion board, can be connected to a traditional coin machine.
Specifications:
Chip size: 19.2 x 18.8 x 2.7mm (±0.2mm)
Working temperature: -30 °C +80 °C
Working voltage: 3.5V-4.2V, 4V power supply is recommended
Boot voltage: >3.5V
Low power average current: below 2ma
Support GSM/GPRS four frequency bands, including 850, 900, 1800, 1900MHZ
GPRS Class: 10
Sensitivity: <-105
Support voice calls
Support SMS SMS
GPIO level: 2.8V
Support GPRS data service, maximum data rate, download 85.6Kbps, upload 42.8Kbps
Support standard GSM07.07, 07.05 AT commands and Ai-Thinker extension commands
A9 supports 3 serial ports, one download serial port and one AT command port
AT command supports standard AT and TCP/IP command ports
Support digital audio and analog audio, support HR, FR, EFR, AMR voice coding
I bought one for us. And to be honest I was VERY SCEPTICAL. But once installed the sky is the limit on what you can do. Our kids are grown with their own children and even the grandchildren know how to operate it and love the video options. So we decided to get them their own and not to brag but mom and dads gift were the bomb. Even the grandchildren were excited
After having it for a few days I love it! I tried it with different cups and mugs and you’ll want to use the a mug with a flat base to really spread the heat. I pre heat my mug while my coffee brews and it will stay hot as long as you’d like. I found the default high heat setting worked best for me. It’s not to expensive and makes a great gift. I got mine in black and it looks great on my desk at work.
This thing really works. If you are reading a review that says it doesn’t then they r either not using it correctly or using the wrong product. I did not get paid to use this product or my personal opinion like others. I didn’t want to spend all the extra money on a fancy brand name with the same results. My pics will speak for themselves.
Arrival a few days before the scheduled date, very satisfied. Well packaged, received intact and functional, perfect for sketches, simple design but good for the price. Comes with an anti-loss strap, and the pen easy to store.
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