1.5’’ oled SSD1351 128X128

Connection
1.5’’ oled                   Arduino uno r3
GND                                   GND
VCC                                    3.3V
SCL                                     2
SDA                                     3
RES                                     6
DS                                       4
CS                                       5

HM-10 Bluetooth 4.0 with USB to TTL Module DIYmall

Use IOS app: HM10 Bluetooth Serial Lite
Software: SerialPort

You can connect the HM10 bluetooth module with USB to TTL module, then you can send message from your iphone to SerialPost windows

Connection:
HM-10               usb to TTL module
VCC                         5V
GND                        GND
TXD                         RXD
RXD                         TXD

Open Bluetooth on iphone , ipen HM10 Bluetooth Serial Lite APP and software SerialPort, you can type message in the APP, then the message will be send to SerialPort windows

SIM7100A 4G Development Board for Arduino Raspberry Pi DIYmall

1 .  Connect the board like this, one micro usb cable to computer, power the SIM7100A board ( pins is supply and GND, you can use DC Power supply to power the board . Power supply voltage:5V-18V, current  about 1.0A, you can adjust the current until the PWR LED turn on

2 . Download document link
http://www.diymalls.com/files/FZ2846-US-sim7100A-board-4G.zip
User name and password is diymall

3 . Press the switch   until the 2 LEDs turn on (PWR and STA)

4 . Open device manager, then you will see

5 . Right click to install the driver, you need install the driver manually, find the driver file and install it for about 5 times ( you need choose the right system file)

6 . Then the computer will inform you to install the driver, just click and install the driver . After installing, please find the COM port in the device manager

7 . Open SIMCom Wireless Kit software, choose the Simtech Hs-USB AT Port 9001 (here is COM23), click open port, you can input AT commands in the e.g blank place, like AT, ATI

Amazon link      https://www.amazon.com/dp/B078BNWB9X

DIYmall 0.91” OLED 128X32 SSD1306 for Arduino Display

Connection
0.91’’ oled                   Arduino uno r3
GND                                   GND
VCC                                    3.3V
SCL                                     A5
SDA                                    A4

Download Library from link  http://code.google.com/p/u8glib/
Remove comment from this line //U8GLIB_SSD1306_128X32 u8g(U8G_I2C_OPT_NONE);  // I2C / TWI

Try the example U8gLogo.ino, you can get the result

Product link