D&V Engineering

1. 16×2 LCD (16 characters per line, 2 lines).
2. Shows white characters on a yellow background.
3. Equipped with a backlight for enhanced visibility in low-light conditions.
4. Easily interfaces with Arudino and other microcontrollers.
5. Suitable for a wide range of applications requiring basic text display and user interaction.

1. TFT LCD Module; Working voltage: 3.3V, it's not compatible with Arduino MEGA pins, so we make a shield for Arduino MEGA; With this module you can directly plug the TFT01 in the shield and stand on the Arduino MEGA board
2. TFT01LCD supports 8-bit mode, can use SD card interface and touch screen interface at the same time, adopts IC voltage division, makes the TFT display more stable
3. This LCD TFT01 Arduino Mega shield V2.0 is fit for 3.2 inch , 3.2W inch , 4.3 inch , 5 inch , 7 inch TFT LCD Module; The TFT01 MEGA shield supports 16-bit mode; Because of Mega board have enough pins for using SD card and touch function at the same time

• Wide input voltage: 3V ~ 32V, optimum operating voltage range is 5 ~ 32V
• Wide Output voltage: 5V ~ 35V
• Built-4A efficient MOSFET switches enable efficiency up to 94%; (LM2577 current is 3A)
• High switching frequency 400KHz, can use a small-capacity filter capacitor that can achieve very good results, the ripple smaller and smaller. (LM2577 frequency only 50KHz)
• Number of items: 1

1. Descriptions:
2. Pixel Color :Red ,Pure green,Blue ,Per Dot
3. Size:60x60mm
4. Pixel Diameter :5mm Led Dirmeter
5. Type : Common Anode
6. Package included:
7. 1 x Full Color 8x8 8*8 Mini Dot Matrix LED Display RGB LED Light Lamp Common Anode Digital Tube Screen For Diy 60mmx60mmx5mm

1. Module Operating voltage : 5V
2. Module size : 5 cm X 3.2 cm wide X 1.5 cm high
3. Single module can drive a common cathode 8 * 8 dot matrix
4. Holes with four screws , diameter 3mm, can be fixed by using our M3 studs
5. Modules with input and output interfaces , support for cascading multiple modules

1. The MAX7219 is an integrated serial input/output common-cathode display driver that connects a microprocessor to an 8-digit digital 7-segment LED display, or a bar graph display or 64 separate LEDs.
2. It includes an on-chip B-type BCD encoder, multi-channel scan loop, segment word driver, and an 8x8 static RAM to store each data. Only one external register is used to set the segment current of each LED.
3. A convenient four-wire serial interface can be connected to all common microprocessors. Each data can be addressed without any need to overwrite all displays when updating. The MAX7219 also allows the user to choose whether to encode or not encode each data.
4. The entire device includes a 150μA low-power shutdown mode, analog and digital brightness control, a scan limit register that allows the user to display 1-8 bits of data, and a detection mode that allows all LEDs to illuminate.
5. There are three colors: red, blue, and green (The blue and green products are upgraded based on user feedback)

1. Model Type: LilyPad
2. Microcontroller Chip : ATmega168 or ATmega328V
3. Operating Voltage (VDC): 2.7 ~ 5.5
4. Input Voltage(Recommended) : 2.7V-5.5 V
5. Analog I/O Pins: 6
6. Digital I/O Pins: 14
7. PWM Digital I/O Pins: 6
8. Flash Memory: 16 KB
9. SRAM: 1
10. EEPROM: 512 bytes
11. DC Current per I/O Pin (mA): 40

1. Versatile: The Nano Adaptor Breakout IO Shield Board allows you to power the Ardino Nano directly using a 9V-12V adaptor.
2. Convenient Access: Easily access the analogue and digital pins from the shield to connect various sensors as required for your project.
3. Prototyping Essential: A must-have for prototyping with the Ardino Nano, this board simplifies the process of building projects.
4. Space-Saving: The compact form factor of this board makes it ideal for projects where space is limited.
5. Versatile Compatibility: Compatible with a wide range of sensors, modules, and components, making it suitable for a variety of prototyping and experimentation tasks.

1. Support Google Android ADK features, support Android phone: G1, Nexus One, Nexus S, Motorola Droid X (mobile phone system needs to upgrade to Android 2.3.4, Tablet PC need to upgrade to Android 3.1).
2. There are compiled APK installation packages and ADK source files. (If you need, please contact us).
3. Compatible with following hardware: Uno 328, Diecimila / Duemilanove 328, Mega 2560 (recommended), Mega 1280.
4. Let achieve USB HOST function, can communicate with other USB devices, and support USB HUB function.
5. The USB power pin, the 3.3Vin, and 5Vin pins needed to be soldered for the shield to work.
6. Works with standard (dual 5/3.3V) and 3.3V-only (for example, Pro Arduino) boards.
7. Operates over the extended -40°C to +85°C temperature range
8. Complies with USB Specification Revision 2.0 (Full-Speed 12Mbps Peripheral, Full-/Low-Speed 12Mbps/1.5Mbps Host)
9. Supports HID devices, such as keyboards, mice, joysticks, etc.
10. Compatible with Mass storage devices, such as USB sticks, memory card readers, external hard drives (FAT32 Type File System – Mega Arduino only).
    • HID Compliant devices such as Keyboard, mouse etc.
    • Compatible with the Android ADK
    • Digital SLR cameras such as Canon, Nikon, Power shot, etc.
    • Game console controllers including the Wii controller.
    • Other USB serial communication devices such as GPS, FTDI etc.

Allowing you to control the following devices:

1. Supply Voltage: 12V
2. Standard interfaces (as that of the extruder)
3. Reserved GCI like I2C and RS232
4. 3 MOSFET’s are applied to the heater/ fan and thermistor circuit.
5. Another 5A added to protect the component parts.
6. An 11A fuse is added to the hotbed.
7. Support 5 stepper drive board

1. 0.91 INCH OLED Display: Resolution is 128*32,Very Clear,Black background with blue text display.
2. IIC(I2C) interface: Only 4 PIN( VCC, GND, SCL, SDA), Simpler than SPI interface Screen, you can leave more ports for connecting other sensors.
3. Sample Code and Technical Support: You can drive this display through the u8glib library . 
4. you can drive this OLED screen in half an hour,

1. Blue Pill Dev Board with ARM Cortex M3 processor, the micro-controller for professionals!
2. 72 MHz, 20 KB Ram, 64 KB Flash, 27 GPIOs
3. USART / I2C / SPI / USB / CAN / DMA
4. The included E-Book ��provides useful information on how to begin your project, helps with a quick setup and saves time on the configuration process
5. This product includes an E-Book that provides useful information on how to begin your project, it helps with a quick setup and saves time on the configuration process. We provide an array of application examples, full installation guides and libraries.

1. The module is a Micro SD card reader module, and the SPI interface via the file system driver, micro controller system to complete the Micro SD card read and write files. Users can directly use the Arduino IDE comes with an SD card to complete the library card initialization and read-write.
2. Support Micro SD Card, Micro SDHC card (high-speed card) The level conversion circuit board that can interface level is 5V or 3.3V.
3. Power supply is 4.5V ~ 5.5V, 3.3V voltage regulator circuit board Communication interface is a standard SPI interface 4 M2 screw positioning holes for easy installation Control Interface.
4. A total of six pins (GND, VCC, MISO, MOSI, SCK, CS), GND to ground, VCC is the power supply, MISO, MOSI, SCK is the SPI bus, CS is the chip select signal pin; 3.3V regulator circuit: LDO regulator output 3.3V as level converter chip, Micro SD card supply Level conversion circuit:
5. Current: 0.2mA(min), 80mA(typical), 200mA(max)

It is 450mm quad frame built from quality materials. The main frame is glass fiber while the arms are constructed from ultra durable polyamide nylon. This version of the F450 features integrated PCB connections for direct soldering of your ESCs.This eliminates the need for a power distribution board or messy multi-connectors keeping your electronics layout very tidy. F450 also comes with stronger molded arms, so no more arm breakage at the motor mount on a hard landing.

Assembly is a breeze with pre-threaded brass sleeves for all of the frame bolts, so no lock-nuts are required. It utilizes one size of bolt for the entire build, making the hardware very easy to keep in order and only requiring one size of hex wrench to assemble.

1. Retain the merits of the V4.0 version
2. Laminated design
3. PCB immersion gold processing technology
4. IIC interface
5. Bluetooth module communication interface
6. SD card module communication interface
7. APC220 wireless rf modules communication interface
8. RB URF v1.1 ultrasonic sensors interface
9. 12864 LCD string of line and parallel interface
10. 32 servo controller interface

1. This is a new 2.4 inch serial SPI color display module without touch function
2. Support analog SPI and hardware SPI
3. Designed with one socket for sd card
4. With PCB plate (including power supply IC, SD), compatible with 5110 interface
5. It can be driven with at least four IO

1. The common negative red yellow green lamp are separately controlled
2. Ultra-fast response, strong anti-interference ability and high cost performance
3. Brightness: Normal(Red>Yellow>Green)

1. Used in conjunction with the Duemilanove protoshield prototype expansion board
2. With self-adhesive tape on the back of miniboard, easy to stick on the Arduino prototype shield
3. Circuit used for building prototype can be directly soldered on the board
4. You can also connect the above mini breadboard circuit
5. Bread board and circuit board via double-sided adhesive connections, soldered breadboard and the circuit board are separated
6. Proto shield prototype expansion board comes with two buttons and two LED circuit can be used directly, all of the pins and the power leads are well fitted and users can build circuit prototype with Arduino

1. Microcontroller: ATmega2560
2. Operating Voltage: 5V
3. Input Voltage (recommended): 7-12V
4. Input Voltage (limits): 6-20V
5. Digital I/O Pins: 54 (of which 15 provide PWM output)

1. 8 analog input port: A0 ~ A7.
2. A pair of TTL level serial port transceiver : RX / TX.
3. 7 PWM port: D3, D5, D6, D9, D10, D11.
4. Circuit Operating Voltage: 5V
5. Clock frequency: 16MHz.

1. Upgrade ESP32 lora development board with 868/915MHz antenna, it supports Sniffer, Station, softAP and Wi-Fi Direct modes. If you want to use the Lora feature, you need two esp32 lora modules. One is
2. ?High reliability, transmission distance (measured open area communication distance 2.8Km); Receiver sensitivity up to - 139 dBm,UDP continues to throughput by 135 Mbps
3. ?Board friendly, space of pins is 2.54*23mm, fit to breadboard. 0.96-inch blue esp32 oled display, lithium battery charging circuit and interface, CP2102 USB to serial chip.
4. ?We Have a Strong After-sales Service Team: As long as you have any questions about the product, we will resolve your issue immediately if received your email, your satisfactory purchase experience is

1. Type: Voltage Regulator
2. Supply Voltage: 3 – 5V
3. Compatible with Arduino NANO
4. All digital and analogue pins breakout
5. Compact size
6. Leads all pins out, convenient for wiring and doing experiments.

1. This Expansion Board As A Driver Expansion Board, Can Be Used For Engraving Machines, 3d Printers. It Has Total Of Four Slots, Can Drive Four A4988 Stepper Motor. Each Stepper Motor Only Need Two Io Ports. In Other Words, Six Io Ports Can Be Well Managed For Three Stepper Motors. Very Convenient To Use. Latest Arduino Cnc Shield Version 3.03
2. Grbl 0.8c Compatible. (Open Source Firmware That Runs On An Uno That Turns G-Code Commands Into Stepper Signals) 4-Axis Support (X, Y, Z , A-Can Duplicate X,Y,Z Or Do A Full 4th Axis With Custom Firmware Using Pins D12 And D13) 2 X End Stops For Each Axis (6 In Total)
3. Spindle Enable And Direction Coolant Enable Uses Removable Pololu A4988 Compatible Stepper Drivers. (A4988, Drv8825 And Others) Jumpers To Set The Micro-Stepping For The Stepper Drivers. (Some Drivers Like The Drv8825 Can Do Up To 1/32 Micro-Stepping )
4. Compact Design. Stepper Motors Can Be Connected With 4 Pin Molex Connectors Or Soldered In Place. Runs On 12-36v Dc. (At The Moment Only The Pololu Drv8825 Drivers Can Handle Up To 36v So Please Consider The Operation Voltage When Powering The Board.)

1. Wemos D1 R2 WIFI ESP8266 Shield Arduino Compatible

1. 4x4 type 16 keys,8 pins 2.54mm pitch connector.
2. Ultra-thin design provides easy integration to any project.
3. Soft and has a removable paper backing,Adhesive back can be securely affixed to the surface of chassis.
4. Used widely in industrial and home electronic equipments, instrument, etc.
5. Package Includes: 3PCS Membrane Switch Keypad.

1. 4*4 Matrix Keypad Keyboard Module MCU
2. External keyboard microcontroller expansion
3. The Keypad library allows your device to read a matrix type keypad
4. 4×4 numeric keypads are most widely used in numerous mini project which requires the user or the operator to give command to the system or to feed in some data
5. If you solder on a header, we highly recommend laying down some flux on the pads first, inserting the header pins, then soldering

1. Product Specific Info:- This is a core chip based on for CS32F103CBT6 ARM core board, features are as follows:; The board is based on the most basic MCU circuit, 8M and 32768 crystal circuit, USB power supply circuit.; The core board is divided into two rows lead to all the I / O ports.; With the SWD simulation debug download interface, simple and convenient, debugging speed.
2. Product Specific Info:- With the use of the Mirco USB interface, you can do USB communication and power supply, USB interface, compatible with the ordinary Andrews mobile phone charger interface.; RTC crystal Epson brand, easy to start, more stable.; With a double pin, but the pin is not default welded
3. Chip Description:- Part No: STM32F103C6T6; Package-Type: LQFP; Number of pins: 48; Kernel: Cortex-M3; Operating frequency: 72MHz; Storage resources:  32K Byte Flash, 20KByte SRAM; Interface Resources: 2x SPI, 3x USART, 2x I2C, 1x CAN, 37x I / O ports,; Analog-to-digital conversion: 2x ADC (12-bit / 16-channel); Timers: 3 general timers and 1 advanced timer; Debug Download: Support JTAG / SWD debug interface to download, support for IAP.; RT9193: 3.3V regulator chip, the maximum output of 300mA.
4. Interface Description:- SWD interface: support for simulation, download and debug.; Mirco USB interface: power supply and USB communication, does not support the download.; USART1 interface: USART1 can be used to download the program, or use the USART1 for communication.; MCU pin interface: leads all I / O port pins, easy to connect with peripherals.; 5V and 3.3V power input and output interface: commonly used external power supply, or with other modules for common ground treatment
5. Features/Specs:- Model: Model: STM32F103C6T6; Core: ARM 32 Cortex-M3 CPU; Debug Mode: SWD; 72MHz work frequency.; 32K flash memory, 20K SRAM.; 2.0-3.6V power, I/O.; Reset(POR/PDR).; 4-16MHz crystal.; Onboard Mini USB interface, you can give the board power supply and USB communication; Length: 54mm; Width: 22mm; Weight: 9gm