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ESP8266 ESP-12F Remote Serial Port WIFI Transceiver Wireless Module (ESP-12F Wireless Module)
Description: 
 
ESP-12F: breakthrough design. The new four-layer board design, the new revision antenna RF performance optimization, compared to the communication from the ESP-12E increased by 30% to 50%! Semi-hole chip technology, the whole IO leads, with metal shielding shell, has passed FCC & CE & RoHS certification, built-board PCB antenna, 4M bytes Flash.
 
Compatible with Adapter plate - not included

Note:
 
We can not offer any support at this stage on this item, sorry for the inconvenience.
 
Package includes:
 
1 x ESP8266 ESP-12F Remote Serial Port WIFI Transceiver Wireless Module

Resources:

Wikipedia
espressif resources
R59.90  Inc VAT
Discontinued: Serial to Micro USB adapter for Raspberry Pi Zero (AW Zero serial adapter)

RASPBERRY PI ZERO NOT INCLUDED

This solderless serial adaptor for the Pi Zero adds a micro USB port to the Pi's GPIO for serial connections! The board uses an FTDI FT234X IC, and Virtual COM port (VCP) drivers are available for many operating systems on the FTDI website.

Using solderless pins, the adapter slides onto the back of a Pi Zero GPIO with no soldering, but if a permanent connection is required, the adapter can still be soldered to the GPIO header.

The adapter PCB is printed with an alignment guide: Ensure the white SQUARE on the PCB is aligned with the GPIO pin with the SQUARE gold pad on the Pi Zero GPIO pin 1. It's advised to connect the adapter to the Pi Zero before connecting the USB cable to the adapter, to prevent the serial RX/TX pins being connected before the ground pin. Once connected the Pi Zero can be powered on/off without issue.

When using with the Cluster HAT you will need to cut the pins down so only a few millimeters stick through the Pi Zero and then file the ends round otherwise the adapter will short on the back of an adjacent Pi Zero. With use the pins may become worn and need adjustment to keep in good contact with the Pi Zero GPIO header.

This solderless serial adaptor for the Pi Zero adds a micro USB port to the Pi's GPIO for serial connections!
R190.66  Inc VAT
ModMyPi Serial HAT (RS232) (MMP Serial HAT)

RASPBERRY PI NOT INCLUDED


The Serial HAT from ModMyPi features a Male DB9 RS232 port connected to the Pi's UART pins via a MAX3232 IC. The MAX3232 IC converts the Pi's UART port to RS232, which enables serial communication with any RS232 compatible serial device!

RS232 is a legacy serial communication standard used in millions of devices globally including: printers, modems, data terminals, interface devices (keyboards/joysticks/mice), medical equipment, servers, instrumentation, industrial control equipment (PLC's, CNC, embedded computers), microcontroller development kits, service access points, sensor interfaces and many more! Many are being superseded by USB or even Bluetooth Low Energy but RS232 is still used in a lot of places and on loads of legacy equipment!

You can connect to the RS232 port on the Serial HAT via the male DB9 port (through use of a serial/null-modem cable) or via the TX/RX/GND solder points on the Serial HAT PCB. The Serial HAT can also be used for remote terminal access to your Raspberry Pi using a computer. You'll need a Female to Female Null Modem Cable, and a Serial to USB cable to achieve this!

The included 40 Pin "Single Shroud" Header, and 14mm Mounting Kit are designed to work with the HighPi Raspberry Pi Case.

Features:

Downloads

MAX3232 Data Sheet

Set Up & Configuration

Pinout Diagram

R259.90  Inc VAT
125KHz Serial UART RFID Card Reader (125KHz Serial card reader)
This is a radio frequency ID card reader module that can read the ID card's serial numbers. It can help to design intelligent access control systems. When the module sensed ID card, it will convert the card number into a 9-digit hexadecimal number, each digit of which will be converted into ASCII code. Then it adds a starting byte and 5 other bytes, so a total of 15 bytes output to the serial port. You can convert it into a decimal number that is the serial number engraved on the ID card.

Features:
- Support Card Type: Read-only ID cards (such as EM4100, EM4001, etc.)
- Working voltage: 4.5~5.5VDC
- Working current: 40mA (max)
- Working frequency: 125KHz
- Reading distance: 2~5cm
- Logic Interface: UART TTL serial port
- Communication format: 8N1
- Baud rate: 9600
- Induction coil: pluggable
- Coil size: 35X40mm
- Coil lead length: 15cm
- Great for DIY
- Applications: Access control systems, Attendance system

Our setup guide
R84.90  Inc VAT
Serial Port WIFI ESP8266 Module Adapter Plate With IO Lead Out For ESP-07 ESP-08 ESP-12 (ESP breakout board)
This Adapter Plate is for ESP07 ESP08 ESP12, a test board with IO lead out.

Please Note:


You will need to solder 3V regulator by yourself.
  ESP07, ESP08, ESP12 module boards are not included.

Package includes:

1 x Serial Port WIFI ESP8266 Module Adapter Plate
2 x Pin headers
R24.90  Inc VAT
IIC/I2C/TWI/SPI Serial Port Module 5V 1602LCD For Display (serial adapter board)
Description:

This is another great IIC/I2C/TWI/SPI Serial Interface. As the pin resources of Arduino controller is limited, your project may be not able to use normal LCD shield after connected with a certain quantity of sensors or SD card. However, with this I2C interface module, you will be able to realize data display via only 2 wires. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino based project.
I2C Address: 0X20~0X27 (the original address is 0X20,you can change it yourself)
The backlight and contrast is adjusted by potentiometer
Come with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable
I2C Address: 0x27 (I2C Address: 0X20~0X27 (the original address is 0X27,you can change it yourself)

Specifications:

Compatible for 1602 LCD
Supply voltage: 5V
Size: 5.5x2.3x1.4cm

Package includes:
1 x serial interface module
R36.90  Inc VAT
GPS Serial Module APM2.5 Flight Control GT-U7 with Ceramic Antenna for Arduino (arduino GPS board)
Description:

Its high sensitivity, small static drift, low power consumption and compact size makes it suitable for applications in vehicles, handheld devices such as PDAs, vehicle monitoring, mobile phones, video cameras, and other mobile positioning systems.
 
Features:
 
- Operating frequency: L1 (1575.42 +/- 10MHz)
- Operating voltage: 3.3 - 5.2V
- Operating current: normal mode is 50mA, the power-saving mode is 30mA
- Communication interface: TTL serial port, micro USB interface (can be connected to a computer to debug)
- Serial port baud rate: 9600bps
- Communication format: 8N1
- Interface logic voltage: 3.3V or 5V
- External antenna interface: IPX. 

Package includes:

1 x GT-7U GPS module
1 x Control board
1 x Header

More info available here



R329.90  Inc VAT
Geekcreit® FT232RL FTDI USB To TTL Serial Converter Adapter Module (FT232RL FTDI USB To TTL Serial)

Features:

Chip: FT232RL
Draw out all signal port of FT232RL chip
RXD / TXD transceiver communication indicator
USB power supply, can choose 5V or 3.3V, set by jumper
With over current protection, using 500mA self-restore fuse
Pin definition: DTR, RXD, TX, VCC, CTS, GND
Pitch: 2.54mm
Size: 36 x 18mm (L x W)

Interface: Mini USB

The USB to TTL serial adapter is based on the high quality and very popular FTDI FT232RL chipset and is an excellent way to connect TTL serial devices to a PC through a USB port.

This USB to TTL serial adapter is ideal for many uses, including:

Programming microprocessors such as ARM, AVR, etc
Working with computing hardware such as routers and switches
Serial communication with many devices such as GPS devices
Serial terminals on devices like the Raspberry Pi
Unlike most USB to TTL serial adapters, this adapter supports both 5V AND 3.3V operation! Simply set the jumper as required to choose between 5V and 3.3V as labelled on the board.

The adapter comes with a right-angle connector fitted allowing you to use it straight away. If you need to access any of the other inputs or outputs of the FT232RL, all the useful signals are provided as through-hole solder pads - ideal for use with straight headers into a breadboard, for example.

Package includes:

1 x FT232RL USB to serial converter module

R59.90  Inc VAT
At-09 4.0 Bluetooth Module For Ble With Backplane Serial Cc2540 Cc2541 Wireless Hm-11 (bluetooth board)
This small size Bluetooth 4.0 TTL transceiver module allows your target device to communicate with your iPhone/iPAD, IOS 6 or Android 4.3 devices. 
It's easy to use and completely encapsulated. 
You can set it as slave or master. 
You can use AT command to set the baudrate.


Specifications:

Ultra-low standby power consumption 90uA~400uA 
Coverage up to 60 meters 
Built in PCB antenna 
Power input: 3.6V-6V DC(Can not higher than 6V) 
Size: 43mm x 15mm 
Color: Blue 
Net Weight: 4g
 

Package Includes:

1 x  IOS HM-10 BLE Bluetooth 4.0 CC2540 CC2541 Serial Wireless Module

Setup

R79.90  Inc VAT
Yellow blue double colour 128X64 OLED LCD LED Display Module For Arduino 0.96" I2C IIC SPI Serial (OLED display)
Description

Interface type: IIC interface
Pin definition: GND, VCC, SCL, SDA
1:GND(OLED power supply)
2:VCC (OLED 3.3~5V)
3:SCL(OLED IIC Clock line)
4:SDA(OLED IIC Cable)

We used these instructions to get it working on Pi: https://circuitdigest.com/microcontroller-projects/ssd1306-oled-display-with-raspberry-pi

Package Includes:

1 x OLED display
R59.90  Inc VAT
USB to RS485 485 Converter Adapter (USB RS485 converter)
USB connector: USB A
No need external power, powered by USB port
Fully compliant USB 2.0 standard , backward compatible with USB1.1

Specifications:
Support System: Windows XP , Vista, Windows 7 , Linux , MacOS , and WinCE5.0 drive
Supports baud rate range : 75bps - 115200bps , up to 6Mbps
Work temperature range: -40°C ~ +85°C
Communication distance :1200m(max)
Dimensions:61mm x 16mm x 13mm
Colour: Black

Applications:
All kinds with RS485 port device parameter settings , data communication
Short distance , such as parameter settings of the computer peripheral equipment , the use of common data lines eg:
• LED display of communication data
• Machine PLC data reading and writing
• Monitoring data read and write , and PTZ control
• centralized control of household electrical appliances
• Access Control System ; card
• a variety of industrial automation ; instrumentation
• Parking ; bus fees
• Dining Hall ; staff attendance
• highway toll station; ATM machine

Package Includes:
1 x USB to RS485 Converter
R33.90  Inc VAT
ESP32-CAM WiFi Module ESP32 serial Development Board 5V Bluetooth with OV2640 Camera Module (ESP32 CAM)
Product Features

Low-power dual-core 32-bit CPU for application processors
Main frequency up to 240MHz, computing power up to 600 DMIPS
Built-in 520 KB SRAM, external 4M PSRAM
Supports interfaces such as UART/SPI/I2C/PWM/ADC/DAC
Support OV2640 and OV7670 cameras, built-in flash
Support image WiFi upload
Support TF card
Support multiple sleep modes
Embedded Lwip and FreeRTOS
Support STA/AP/STA+AP working mode
Support Smart Config/AirKiss one-click distribution network
Support secondary development
R199.90  Inc VAT
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