This is the RFID Module sold by RFIDGeek/Univelop Tech. While this little module might not look like much, it IS true what they say, “Good things come in small packages”.
By wiring +5 and Ground, as well as RS232 RX and TX to the board, you can use the included program to read and write to/from MiFare cards.
The company website (RFIDGeek.com) does not do the module justice. This little ~1.35″*2.25″ RFID reader/writer module packs the following onboard:
- Fudan Microelectronics FM1702NL (32-pin SOP): [PDF] Parallel or SPI Interface (Note, the higher models, FM1715NL and FM1725NL both share a common pinout, and offer increased features [see the PDF]. I wonder if the board would work with one of these instead of the FM1702…)
- 13.56Mhz Crystal
- Sipex SP232EEN: TTL-RS232 Converter
- LSI 1021WI?: (8-pin SOP, bottom side of the module)
- Unknown Microcontroller: (44-pin, ID has been shaved off)
- 11.0592Mhz Crystal
There is space available to add pin headers to the board for each of the following: (All of these are subject to change and/or verification)
J1: Antenna Interface
- Transmitting Antenna 1
- Transmitting Antenna 2
- Receiving Antenna
J2: Microcontroller Interface
- Control Output
- Buzzer Output (High)
- RS485 Control (Low)
- Reset Onboard MCU (High)
- UART Receive
- UART Transmit
J3: Microcontroller SPI? (For the “Module 500” Only?)
- SPI Clock Out from FM1702NL Pin 24
J4: RS232 I/O
- VCC (+5V)
- RS232 Receive
- RS232 Transmit
I got this little “Anadigi GPS-R02 DIY” car gps kit from eBay seller anadigi-hk, and it was mailed direct from Hong Kong.
[Edit: Apparently, the eBay Store and user are no more.]
It came with the GPS Circuit board and a little plastic case for it, an MMCX antenna with magnetic base, and a matching USB cable. The mini-CD came with drivers and a few test and diagnostic programs.
It works great; by the time my computer comes out of hibernation, it already has a signal lock. Talk about bang for the buck!
The receiver is based on the NemeriX NJ1030A [Datasheet – Archive.org], and includes WAAS/EGNOS support.
Markings on the box: (They look like the vitals for the GPS Antenna)
- Product Model: GPS
- Center Frequency: 1575.42 +/-3Mhz
- LNA Gain (Without Cable): 28dB
- Noise Figure: <1.5dB
- VSWR: <2.0
- DC Current: 10mA Max
- Mounting: Magnetic Base
- Housing: Black
- Working Temp: -40*C ~ +85*C
- Vibration: Sine sweep lg(0-p) 10~50~10Hz each axis
- Humidity: 95%-100%RH
- Weatherproof: 100% Weatherproof
- Cable Length: 3m
- Voltage: 3-5V
- Connector: MMCX
- USB to Serial Converter (onboard): PL-2303* (but the Prolific Windows driver doesn’t like it, errors with Code 10: Cannot start”, according to the Prolific website, that means it’s likely a counterfeit PL-2303 chip. I’ll have to dig out the CD that came with it again.)
Update: How to add GPS to your Eee PC @ beta.ivancover.com – That’s definitely one of the first things I’d do with an Eee.