3 ms·

So for those who may have seen the BTTN post (100 dollar cell network enabled button) you now know the dirty secret. You are this shield, and arduino and 60c a

by hoopism 12y ago

So for those who may have seen the BTTN post (100 dollar cell network enabled button) you now know the dirty secret. You are this shield, and arduino and 60c away from building your own.

kenrikm 12y ago
By the time you purchase the Sim900, Arduino and make a case you would be about $70 - 100.
- hoopism 12y ago
  You can get a barebones arduino for around 3-5 dollars. Shield (without any price comparison shopping whatsoever) is 49 bucks (http://tronixlabs.com/arduino/shields/gsm/sim900-gsm-cellular-shield-for-arduino/ http://tronixlabs.com/arduino/shields/gsm/sim900-gsm-cellula...). Siemens has an arduino compatible GSM module for 29.99 (http://www.sainsmart.com/siemens-tc35-sms-gsm-module-voice-adapter.html?kpid=13_en http://www.sainsmart.com/siemens-tc35-sms-gsm-module-voice-a...). So 33 bucks and a free "That was easy" button from staples and there you go... that's at single unit price. BTW, for vast majority that is likely beyond their capability... so maybe 77 bucks is worth it? I dunno.