Hey Gang, What would it take to interface with one of these? http://www.acs.com.hk/index.php?pid=product&prod_sections=0&id=ACM120S
http://www.acs.com.hk/drivers/eng/TSP_ACM120S-SM_v2.00.pdf Page 8 has pinouts, I see RS232 & I2C, do you think it just outputs the RFID info when it reads one, or would an Arduino connected to it need to provide a lot more support?
The idea is that users are given a card upon entering a building and the serial number of the card is linked to their name, they swipe the card at different locations and a record is kept of where they went via Arduino back to central location via RS485, when they turn in the card upon leaving, they get a print out with info about the location swiped at. Pretty informal, does not need encryption or anything. Or is there a simpler reader solution?
From section 5.1 of the third document above http://www.acs.com.hk/drivers/eng/CMP_ACR120S_v3.00.pdf It seems like getting a number back from a card should be pretty straightforward.
I got to this one from the ACS122, which seemed to require having USB host capability. If I can go straigth serial, or I2C, that simplifies the interfacing, and not have to deal with PC APIs and all that. http://www.acs.com.hk/index.php?pid=product&prod_sections=0&id=ACR122U Thanks