SKU: 26756074723

SIM900 SIM 900 GPRS/GSM Shield Development BoardQuad-Band Module

Sale price$24.30 Regular price$27.00
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Ships within 48 hours · Estimated delivery Sep 26 - Oct 1

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Description

SIM900 SIM 900 GPRS/GSM Shield Development BoardQuad-Band ModuleSIM900 GSM GPRS shield is based on a chip of SIM900 from SIMCOM and is compatible with Arduino and its clones. It is used to make and receive phone calls, send and receive SMS and connect to the internet using the GPRS network via UART using AT commands. It supports quad band and can communicate through GSM 850 MHz, GSM 900 MHz, DCS 1800 MHz or PCS 1900 MHz networks. It has a power jack along with a toggle switch to use an external power supply.

SIM900 GSM GPRS shield is based on a chip of SIM900 from SIMCOM and is compatible with Arduino and its clones. It is used to make and receive phone calls, send and receive SMS and connect to the internet using the GPRS network via UART using AT commands. It supports quad-band and can communicate through GSM 850 MHz, GSM 900 MHz, DCS 1800 MHz or PCS 1900 MHz networks. It has a power jack along with a toggle switch to use an external power supply.

SIM900 shield can be powered by a 5V power supply that can provide 2A current, or 9V 1A or, 12V 1A supply. It is equipped with a microphone and speakers jack for phone calls. At the backside of the shield, there is a sim card jack and a holder for a 3V CR1220 battery for the RTC (real-time clock). After insertion of sim and battery, the shield can be mounted on top of the Arduino board.

Features:

  • Compatible with Arduino and its clones
  • Quad Band 850 / 900/ 1800 / 1900 MHz GSM network
  • Can send and receive SMS, MMS, GPRS and audio using GSM network.
  • Supports UART interface
  • AT commands
  • Embedded TCP/UDP stack facility for uploading data to a web server
  • RTC support
  • Speaker and Headphone jacks
  • Equipped with 12 GPIOs, 2 PWMs, and an ADC

Specifications:

  • Supply voltage: 3.4V-4.5V
  • Low power consumption: 1.5mA(sleep mode)
  • Industrial temperature range: -40⁰C  to +85⁰C
  • Class 4 (2 W @ 850 / 900 MHz) , Class 1 (1 W @ 1800 / 1900MHz)
  • Dimensions: 8.5 X 5.7 X2cm(approx)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 26756074723

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4.4 ★★★★★
Based on 26 reviews
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Sharpshopper
Whiting, US
★★★★★ 5
Amazing Fit For Tall Senior Slim Person!
Fit Type: 33" Inseam, Size: Medium, Color: Lake Green
I usually wear a size 8 or 10 or medium. But being 5 foot 11 and weigh 145, it’s very hard to find pants that fit. These in medium are great lightweight and long enough that they touch the floor in the back. Being older I have extra weight in my stomach and waist, but the waist is wide and not tight. It fits nice in the back also and the rise is long enough. Great summer pants for our hot weather in Florida. Even if they do pill some, I have a gadget that removes any pilling so not worried about that. I got the medium in the teal color which is not as bright but a nice color.
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Reviewed in the United States on March 4, 2026
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Monee Loyalty
West Palm Beach, US
★★★★★ 1
Pilling
I loved these pants very much when I first purchased them the fit was amazing and the length was even better. Pants are very flattering. I wore them for the first time a few days ago only for a couple hours and pilling happened immediately! I am very annoyed at that fact because I purchased these pants at the end of March and I am not in my return window! I am Not a happy customer at all. Waste of money
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Reviewed in the United States on June 2, 2026
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Verified Purchase
CH
Birmingham, US
★★★★★ 5
Bought again but note the material was different .
Fit Type: 33" Inseam, Size: Medium, Color: White
Love these pants . Good quality. Good material and made well. Bought a second pair but they are lighter weight material which is nice for the summer. Will buy again. First heavier white material did not shrink. Not sure about the most recent material as I haven’t washed them yet. Size true to fit
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Reviewed in the United States on May 30, 2026
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Tracy S.
Cuba, US
★★★★★ 5
Perfect linen pants
Absolutely love these pants. They are high quality material and well made. The legs aren’t too wide and the wide waistband with drawstring is very flattering. Perfect transition piece between seasons but are lightweight enough to wear during the heat of the summer. I liked them so well I bought in three other colors.
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Reviewed in the United States on April 30, 2026
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L. Howard
Carnegie, US
★★★★★ 5
So flattering and comfy!
Fit Type: 31" Inseam, Size: Medium, Color: Deep Khaki
These are so cute and comfy, plus natural fiber. I got the brown and I’m coming back for the khaki. Love! *I’m 5’8” 136 lbs, got the 31 inch size Medium. They were super big until washing/drying- still big but I think Small would be too small. They are a very flattering fit, especially with the cute back pockets.
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Reviewed in the United States on April 15, 2026

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