This component page is a set of links to some of the modules I have been using or playing with / testing. As I am testing and using these modules I come across a lot of links on how to set things up and get them working, from libraries to pin outs or schematics. I find these resources useful and I needed a way to collate all the information I was gathering in a way I could access what was or was not useful. These links are to the component information that I uncovered – so note, most of the information is not written by me but taken from sites that are very useful (all credited of course). However, this means there is every possibility that the links will end up broken or out of date. I will try to date when I accessed the information and update things as they change / improve.

If you have noticed anything that should be changed or modified then please leave a comment and I will amend things, or at least other people can see what other information is out there! Thanks all!


ESP8266 Serial-to-WiFi module

ESP8266 Serial-to-WiFi module

ESP8266 Serial WiFi Module
  • Currently around $3-5
  • WiFi communication through serial AT commands.
  • Baud rate: 115200
  • Operating voltage: 1.7 to 3.6V (3.3V is standard)
rc522 MF-RC522 RFID Reader

Model: MF522-AN, read-write data, based on NPX chip MFRC522.
Aproximate detection distance = 10 cms.
Voltage: 3.3 volts @ 13 ma. Maximum current = 30 ma.
Specification Tag: Mifare MF1S503 with 1 Kb EEPROM
Operating Frequency: 13.56 Mhz
Interface: 8-pin header connector, SPI, with speed up to 10 Mbps
Operating Temperature: -20 to +60 degrees C.
Dimensions: 40 x 60 mm.

tp4056 TP4056 1A Lithium Battery Charging Module Uses Mini USB header to directly connect to the computer to charge battery. Red Charging Light, green charge done indicator.
micro usb Micro USB Connector a connector to power the board, using micro plug
700px-GPRS001 GSM / GPRS Shield The GPRS Shield provides a way to communicate using the GSM cell phone network. The shield allows you to achieve SMS, MMS, GPRS and Audio via UART by sending AT commands. You do need a Sim with data activated.