Powered by Blogger.

Friday, 2 May 2014

High Quality Modem For SMS, Voice and Data Transfer Applications

by realfinetime  |  in TTL at  00:21

          rhydoLABZ's  GSM/GPRS TTL UART MODEM-SIM900 is built with Quad Band GSM / GPRS engine - SIM900. It works on four frequencies 850 / 900 / 1800 / 1900 MHz. Selectable Interfacing Voltage helps to connect modem to 5V and 3V3 microcontrollers without any level conversion chips. Baud rate can be configured from 9600-115200 through AT command.

          It can be used for SMS, voice and data transfer applications in M2M interface. Internal TCP/IP stack helps modem to connect to internet via GPRS. Device is constructed in high quality standard, not hobby grade. Onboard low dropout 3A power supply helps to connect wide range of unregulated power supply from 5V to 12V.


1. High Quality Product
2. Quad band GSM or GPRS engine - SIM900 works on four frequencies 850 / 900 / 1800 / 1900             MHz.
3. Can be directly interfaced to 5V and 3V3 Microcontrollers.
4. Baud rate can be configured.
5. Can be connected to Internet using TCP / IP stack via GPRS.
6. Network status LED.
7. SIM card holder.
8. Wide range of input Voltage 5V - 12V
9. Audio interface connector.

Get more details of this product from here.


  1. International IoT SIM card is planning to be directed at scale with versatile assertion terms for charging. This obliges benefits like diverse charging choices in light of utilization, and the capacity to alter an enrollment. IoT SIMs furthermore allow getting to over distinctive neighborhood organizations, centering on the foremost perfect one that anybody may trust to find.



All the circuits, published in this blog is only after testing and getting proper results in my private lab. When you try these circuits, you should check the supply voltage, polarity of components, presence of childrens nearby and shorts in the circuits. This website will not be responsible for any harm happened to you or your components caused by your carelessness.

For More Electronic Tips

Blog Archive

Proudly Powered by Blogger.