D&V Engineering

Each of the 14 digital pins on the Nano can be used as an input or output, using pin Mode, digitalWrite, and digital Read functions. They operate at 5 volts. Each pin can provide or receive a maximum of 40 mA and has an internal pull-up resistor (disconnected by default) of 20-50 kOhms. In addition, some pins have

Specialized Functions:

• Serial: 0 (RX) and 1 (TX). Used to receive (RX) and transmit (TX) TTL serial data. These pins are connected to the corresponding pins of the FTDI USB-to-TTL Serial chip.
• External Interrupts: 2 and 3. These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value. See the attachInterrupt() function for details.
• PWM: 3, 5, 6, 9, 10, and 11. Provide 8-bit PWM output with the analogWrite() function.
• SPI: 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK). These pins support SPI communication, which, although provided by the underlying hardware, is not currently included in the Arduino language.

1. [High-Speed Wireless Connectivity]: The ESP8266 development board provides fast and reliable wireless connectivity, allowing easy access to your devices or the Internet.
2. [Compact and Versatile Design]: With its small form factor, the CH340 ESP-12E board is perfect for integrating into various electronic projects or IoT applications, offering flexibility and convenience.
3. [Powerful Performance]: Equipped with powerful ESP6266 microcontroller (ESP-12E), the serial wireless module delivers exceptional performance, ensuring seamless communication and data transmission over WiFi networks.
4. [Easy to Use and Program]: The ESP8266 NodeMCU panel offers a user-friendly interface and extensive documentation, making it easy for developers and hobbyists to use and program. It supports popular programming languages and frameworks for convenient integration.
5. [Open-Source Development]: The NodeMCU LUA board is supported by a large online community, offering extensive resources for developers. This open-source approach allows for customizing and expanding its capabilities as needed.

• This is ESP WROOM 32 MCU Module. ESP WROOM 32 is a powerful, generic WiFi-BT-BLE MCU module that targets a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming, and MP3 decoding.
• At the core of this module is the ESP32S chip, which is designed to be scalable and adaptive. There are 2 CPU cores that can be individually controlled or powered, and the clock frequency is adjustable from 80 MHz to 240 MHz.

1. Material: FR4 + Electronic components
2. The Arduino Ethernet W5100 network expansion module allows the Arduino to be a simple Web server
3. Supports reading and writing mini SD / TF card
4. With Micro SD card slot, supports SD card up to 2GB, supports MEGA, Uno

• Ar-duino Nano V3 ATMEGA328 is a compact and versatile microcontroller board that is ideal for a wide range of projects. It is compatible with the Arduino IDE, making it easy to program and use.
• Compact size of the board makes it ideal for use in projects where space is limited, such as wearable technology, robotics, and home automation. It can also be easily integrated into larger projects as a component.
• Board features a 16MHz clock and 32KB of flash memory, making it powerful enough to handle a wide range of tasks.
• Board compatible with a wide range of programming languages, making it a flexible and versatile tool for hobbyists and professionals alike.

1. Suitable for Raspberry Pi B+, Pi 2 B, Pi 3B, Pi 4B
2. Material: aluminum
3. These heat sinks have profiles that are short enough to fit within standard Raspberry Pi cases
4. Color: Golden/Green/Blue/Black
5. 1 x set of 4 heatsink for raspberry pi

1. ESP32 is a safe, reliable, and scalable to a variety of applications. The ESP-WROOM-32 is a versatile Wi-Fi + BT + BLE MCU module that is powerful, versatile and can be used for low power sensor networks and demanding tasks such as voice coding, audio streaming and MP3 Decoding and so on.
2. The module has 38 pins,Ultra-Low power consumption,small volume, easy to embed to other products, works perfectly compatible with the Arduino IDE. Only compatible with 38 pins esp32 breakout board, ref asin: B0BJQ3C11B. Not applicable to other versions. You can enter this code to find the product directly on the amazon homepage, otherwise it is easy to buy the different size product don’t match the one you have.
3. Support Lua program, easy to develop, support LWIP protocol, Freertos, three modes : AP, STA and AP + STA. IMPORTANT: Only compatible with 38 pins esp32 breakout  other versions.
4. The user can cut off the power of the CPU and use the low-power coprocessor to continuously monitor the status of the peripherals or whether some of the analog values exceed the threshold.
5. ESP32 also integrates a wealth of peripherals, including capacitive touch sensors, Hall sensors, low noise sensor, SD card interface, Ethernet interface, high-speed SDIO / SPI, UART, I2S and I2C.

1. RP2040 microcontroller chip designed by Raspberry Pi
2. Dual-core Arm Cortex M0+ processor, the flexible clock running up to 133 MHz
3. 264KB of SRAM, and 2MB of onboard Flash memory
4. 26 × multi-function GPIO pins
5. 2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels

1. Interface Type: I2C; Channels: 4 Channel AN0 AN1 AN2 AN3 or 2 differential inputs
2. Input voltage:2.0-5.5v; Channel input voltage:0-VDD; Continuous Mode:Only 150μA
3. Single-Shot Mode: Auto Shut-Down; PROGRAMMABLE DATA RATE:8sps-860sps
4. I2C 7-bit addresses between 0x48-0x4B Size:18mm*28mm

1. Arduino Mega 2560 is designed for your most ambitious projects which require additional pins and extra memory
2. Based on the 8-bit AVR microcontroller ATmega2560, it has 54 digital I/O pins, 16 analog inputs and a larger space for your sketches
3. Ideal for: 3D printing, CNC robotics
4. Compatible with most shields designed for the Arduino Uno
5. Arduino is an open-source hardware, software, and content platform with a worldwide community of over 30 million active users.

1. The PIC ICD2 PICKit2 PICKIT3 Universal Programming Adapter Programmer Board is designed to work in conjunction with the popular PICkit 2 or PICkit3 programmer.
2. Prime High quality dropship good look

1. Optimized for Solar Input: Efficient charging from low-power solar panels with MPPT support
2. Supports 3.7V LiPo/Li-ion Batteries: Designed for safe and stable charging of single-cell batteries
3. USB or Solar Panel Input: Charge via micro USB or a connected solar panel (up to 6V)
4. Built-in Protection Circuits: Overcharge, over-discharge, and short-circuit protection
5. Automatic Power Switching: Prioritizes solar input when available, falls back to USB
6. Compact & Lightweight Design: Perfect for wearable, remote, and space-limited projects
7. Charging Status Indicators: LED indicators show charging and fully charged status

1. IC Chip: X9C103S; Input Supply Voltage: 3 ~ 5VDC; 10K span potentiometer
2. Potentiometer center tap between the 0-10k slide in total 100 (potentiometer wiper typical impedance 40 ohms)
3. VL and VH digital potentiometer sliding rheostat port corresponding to the low-end and high-end, allowing the input voltage range -5V to + 5V.
4. Dimension:- Length: 28mm; Width: 14mm; Height: 4mm
5. Packaged by:- Sharvi Technologies (OPC) Pvt. Ltd.; Address:- #09, CK Nagar, AECS layout, Hosa Road, Bangalore-560100

1. Integrated WiFi: Built-in wireless connectivity (802.11n) allows for easy internet access and communication with other devices.
2. Dual-core Processor: Powered by the RP2040 microcontroller, featuring a dual-core Arm Cortex-M0+ running at up to 133 MHz for efficient processing.
3. Extensive GPIO Pins: Offers 26 multi-functional GPIO pins, enabling connections to various sensors, actuators, and peripherals.
4. USB-C Interface: Convenient USB-C port for power supply and programming, ensuring compatibility with modern devices.
5. Support for Multiple Programming Languages: Compatible with MicroPython, C/C++, and other programming environments for flexible development options.
6. Onboard LED: Integrated LED for visual feedback and debugging during development.
7. Compact Design: Small footprint (51mm x 21mm) for easy integration into projects without taking up excessive space.

1. Material: Transparent Acrylic sheet with Screws.
2. For Arduino UNO R3 Development Board only.
3. With screw copper pillar and installation instructions.
4. To protect your little computer against damages, dust, and scratches Clear Top and Bottom.
5. It requires no tools for easy assembly and disassembly.

1. If you've ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices.
2. The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the HV' pin, low voltage (3.3V for example) to LV', and ground from the system to the GND' pin.
3. Number of Channels: 4 Voltage on Lx Side: 1.8V-5V Voltage on Hx Side: 2.8V-6V Power: 2.8V - 6V Conversion Method: MOSFET Based (without signal inversion)
4. The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the 'HV' pin, low voltage (2.8V for example) to 'LV', and ground from the system to the 'GND' pin.

1. DC-DC 24V/12V To 5V 5A Step Down Power Supply Buck Converter Replace LM2596S Adjustable USB Step-down Charging Module For Phone
2. 5A power module DC-DC step-down module 24v/12V to 5V power converter module over LM2596S.
3. Synchronous rectification scheme, wide voltage, high current and high efficiency.
4. With DC plug and wiring terminal, it is convenient to use.
5. With USB port, fast charge identification chip compatible with Android for iPhone.

1. CMOS single-chip fully-integrated FM tuner
2. Low power consumption
3. Support worldwide frequency band
4. Support RDS/RBDS
5. Digital low-IF tuner
6. Image-reject down-converter
7. High-performance A/D converter
8. IF selectivity is performed internally
9. Fully integrated digital frequency synthesizer
10. Fully integrated on-chip RF and IF VCO.
11. Only support 2-wire bus interface

The SIM800A Quad-Band GSM/GPRS Module with RS232 Interface is a complete Quad-band GSM/GPRS solution in an LGA(Land grid array) type which can be embedded in the customer applications. SIM800A support Quad-band 850/900/1800/1900 MHz, it can transmit Voice, SMS and data information with low power consumption 

• Raspberry Pi Pico W comes with a wireless communication module. The wireless module hardware uses Infineon's CYW43439 wireless chip, which supports Wi-Fi 4 wireless networks in the 2.4 / 5 GHz band, making it the perfect solution for wireless network control and communication.
• 26 x multi-function GPIO pins: configurable pin function, allows flexible development and integration
• Built-in Wi-Fi: Onboard Infineon CYW43439 wireless chip, supports 2.4/5 GHZ Wi-Fi 4
• Dual-core Arm processor: Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz
• C/C++, MicroPython support: Comprehensive SDK, dev resources,

1. Support for Arduino IDE 1.0+ (OSX/Win/Linux);Power LED and Test/Status LED (on Pin0)
2. Power via USB or External Source 5V or 7V-35V (Automatic Selection)
3. 6 I/O Pins (2 are Used for USB Only if Your Program Actively Communicates Over USB, Otherwise you can use all 6 even if You Are Programming via USB)
4. Digispark Kickstarter Board is an Attiny85-Based Work that is Smaller, Cheaper, and More Powerful
5. Development Board using the ATtiny85 Microcontroller. It has its own USB Bootloader and Built in USB Capability , you can Program it for Compatible with SDK and also use it as Native USB Device