the board is controlled by the ESP8266 chip (a 32-Bit processor) and has a larger flash memory compared to an Arduino Uno. It consists of 11 digital I/O pins and 1 analog (input) pin. the board can be connected using a Micro-B type USB cable.
The D1 R2 is a WiFi capable ESP8266EX based development board in the form of the Arduino UNO board format.This board is compatible with theArduino IDEand withNodeMCU.
The D1 R2 also features an onboard switching power supply which allows you to power the board from a power supply up to 12V.
| Microcontroller | ESP8266 |
| Digital I/O Pins | 11 |
| Operating Voltage(VDC) | 3.3 |
| Analog I/O Pins | 1 |
| Flash Memory | 4 MB |
| Dimensions in mm (LxWxH) | 68x54x12 |
| Weight (gm) | 20 |
| Shipment Dimensions | 6 6 2 cm |
This is Wemos D1 Mini WIFI Internet Of Things Development Board Based ESP8266, it is a mini WIFI board based on ESP-8266EX. 11 digital input/output pins, all pins have interrupt/PWM/I2C/one-wire supported(except D0) 1 analog input(3.3V max input) and a Micro USB connection
The Wemos D1 Mini is a great board to develop WiFi based IoT Projects. It uses the popular ESP8266 Module for its IoT operations. Can be easily programmed through USB and requires no additional programmer.
Use this tried and tested hardware platform to build your IoT Projects without having to worry about hardware design and fabrication. This board lets you jumpstart your IoT Development by letting you concentrate all your time and effort on software development.
Although small in size, great in capabilities. The Digispark ATTINY85 Mini USB Development Board is similar to the Arduino but cheaper and smaller (of course a bit less powerful). With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE, this board is a great way to jump into microcontroller electronics.
Complete USB Development Board Cheap Enough to Leave in a Project. If you have never heard of the Digispark ATtiny board before, it may take you more than a moment to understand its full power and potential. So read this carefully:
Firstly, its a 20MHz, AVR 8-bit microcontroller with 8 KB flash, 512 bytes of RAM
You get up to 5 GPIOs, 4 ADCs, 2 PWMs, 1 SPI, and 1 I2C[*]
Secondly, its fully compatible with Arduino
Thirdly, it can be directly programmed via USB without needing any other programmer!
And finally, it is available at a cheap price!!
The Digispark is shipped fully assembled except for the two included and easy to solder headers.
This LoRa 433MHz module designed by AI-THINKER, which based on the chip SX1278. The SX1278 RF module is mainly used for long-range spread spectrum communication. It can resist Minimize current consumption. Thanks to SEMTECH’s patented LoRa ™ modulation technology, the SX1278 has a high sensitivity of -148 dBm with a power output of +20 dBm, a long transmission distance and high reliability. At the same time, compared with the traditional modulation technology, LoRa™ Modulation technology in anti-blocking and selection also has obvious advantages, to solve the traditional design can not take into account the distance, interference and power consumption.
The ATtiny85 based mini development board is similar to the Arduino, but cheaper and smaller (of course a bit less powerful). With a whole host of shields to extend its functionality and the ability to use the familiar Arduino IDE, this ATTINY85 USB Development Board is a great way to jump into microcontroller electronics.
ATtiny85 based microcontroller development board come with the USB interface. Coding is similar to Arduino, and it uses the familiar Arduino IDE for development. This is a digispark clone.
It has 6 port with several functions. Depending on the programming (with Arduino IDE) can it have 6 digital I/O, 4 analog inputs or 3 PWM outputs. It can be powered by a USB port or an external power supply of 6-35V DC.
