3 x D1 Mini NodeMCU WiFi Board ESP8266-12F CH340G WLAN ESP8266 Micro USB Lua Module 3.3V 500mA compatible with Arduino Including E-Book!

Review of ESP8266 AZDelivery D1 Mini NodeMcu Lua WiFi Board ESP8266-12F CH340G WLAN ESP8266 Micro USB Module 3.3V The item arrived within 3 days of ordering from the UK Amazon site. The part had its own box and was inside a sealed antistatic bag. Extra pin headers were also included in the box. This module was followed up with an email from AZDelivery customer service with supporting information such as the module’s pinout diagram. The overall quality of the PCB is satisfactory, the silkscreen is clear and readable and the solder joints are clean. Module straights out of the box with the Arduino IDE as long as the relevant drivers and libraries have been loaded. The boards can be downloaded from the Arduino or espressif websites using the “Arduino ESP8266 boards “as a key search phrase. The boards .json file must be added in the Additional Board Manager URLs field under preferences. The board type that will work with this module is: Generic ESP8266 Module as shown in the attached photo. To prove that the module is working, I made an ultra-small standalone WiFi sniffer with this module by combining it with the 1.3 SH1106 OLED screen. The code for this small application is below. It is based on the examples that come with the ESP2866 library. The function is to scan every three seconds and display the number of WiFi networks that the onboard antenna can “hear”. The connections needed are 4 wires for: are 5V for power, GND, D2 for the screen’s SDA and D1 for the screen’s SCL. Overall the module is of good quality and it seems like a very good fit for embedded IoT projects. #include "ESP8266WiFi.h" #include <U8g2lib.h> //OLED Library #include <Wire.h> //For I2C U8G2_SH1106_128X64_NONAME_F_HW_I2C u8g2 (U8G2_R0, U8X8_PIN_NONE); void setup() { Serial.begin(115200); u8g2.begin(); // Set WiFi to station mode and disconnect from an AP if it was previously connected WiFi.mode(WIFI_STA); WiFi.disconnect(); delay(100); Serial.println("Setup done"); // u8g2.setFont(u8g2_font_ncenB10_tr); // choose a suitable font u8g2.drawStr(5,15,"setup done"); u8g2.sendBuffer(); // transfer internal memory to the display delay(500); u8g2.clearBuffer(); } void loop() { Serial.println("scan start"); // u8g2.drawStr(5,15,"scan start"); u8g2.sendBuffer(); // transfer internal memory to the display delay(500); u8g2.clearBuffer(); // WiFi.scanNetworks will return the number of networks found int n = WiFi.scanNetworks(); Serial.println("scan done"); if (n == 0) { Serial.println("no networks found"); } else { Serial.print(n); Serial.println(" networks found"); for (int i = 0; i < n; ++i) { // Print SSID and RSSI for each network found Serial.print(i + 1); Serial.print(": "); Serial.print(WiFi.SSID(i)); Serial.print(" ("); Serial.print(WiFi.RSSI(i)); Serial.print(")"); Serial.println((WiFi.encryptionType(i) == ENC_TYPE_NONE) ? " " : "*"); delay(10); } } Serial.println(""); // u8g2.drawStr(5,15,"Networks found:"); u8g2.setCursor(0,40); u8g2.print(n); u8g2.sendBuffer(); // transfer internal memory to the display delay(500); u8g2.clearBuffer(); // Wait a bit before scanning again delay(3000); }

Delivered promptly and nicely packaged, as usual from AZ-Delivery. The D1 mini is the small form factor version of the ESP8266 NodeMCU WiFi development module, and its easy to see why this is so popular. It has all the features of the bigger version, and if you can live with the reduced number of GPIOs it is ideal for home IoT projects due to its small size. Works fine with the Arduino environment, well supported and easy to programme. WiFi libraries work well. To test the device I connected it to the popular Blynk IoT platform. Sample programmes from Blynk had me up and running in no time – D1 Mini is well known and supported at Blynk. Easy to send information to and from D1 mini to IoT, and I was controlling an RGB LED from my mobile phone very quickly. If using the built-in LED remember that it is on Pin 4 (ESP8266 dev boards vary, so check the pin-out). The printing on the board is clear, and the board itself looks neat, tidy and well made (both of these are not always true of cheaper cloned D1s). Easy to use, powerful and user-friendly little development board. The D1 Mini is now my go-to device for home IoT projects.

I ordered 3 of these for a project that needed a small wifi board and these fitted the bill. They were reasonably priced, arrived quickly and were well packaged in a small card box with individual boards in anti-static bags. The description says that there's an e-book to come with them - there's a QR code on a card included in the box which links to all of their user guides. The one for the D1 mini is pretty comprehensive, however, there's so much easily accessible information about the D1 mini on line that its not really needed. I've only used one of these so far and it's all working as intended - I'm using with ESP home. Would certainly recommend these and will be buying again when needed.

Comes with the header pins to solder yourself (choice of 3 types). These things are great little microcontrollers, I have 5 and can see me getting more for various IoT things around the house.

This has become my favourite microcontroller for experimenting. The smaller board has nothing missing from its full-sized ancestor. There may be 14 less pins, but as they are all things like duplicate ground pins, not connected, or I/O that is already in use internally, they won't be missed. With the CPU/WiFi antenna on one side of the board and the USB interface, voltage regulator, etc. on the other side, it occupies far less space on the breadboard. I have built projects simultaneously using a TFT colour touch screen plus a small monochrome OLED display together with a couple of sensors and still had GPIO pins (and the analogue) unused. The large flash allows huge programs to be written and also a small memory-based file system to be used. The killer feature when compared with competition like the Arduino Nano has to be the WiFi. Why add a real time clock module when you can access an atomic clock via an NTP server? There are lots of libraries, examples and information available for the ESP8266 on the internet, making this an ideal module for many IoT and other projects. Excellent value, particularly at the prices for a small quantity.

Just what I needed. Reliable and great quality after a good years use.

I love these little boards. Arduino programmability, wifi and a tiny form-factor have made them so useful for a number of projects. I've wired one into the power switch of a home server that only needs to be turned on occasionally, and made it controllable via my Amazon Echo ("Alexa, turn on the Media Server"). With another 2 I'm building a DIY wireless Tally light system for a livestream I run (tally lights at the indicators on top of TV cameras to let the presenters and crew know which camera is currently "Live"). They are powering a short run of 5v LED strip lights, and all communicating with each other over wifi. Great fun to work with, and thus far I haven't had any problems.

I have used this product and have mainly up to now used WLED on it to run LEDs. The device is great value and does exactly what it says and provides guides for pin outs.

Comme d'habitude, j'achete chez AZdelivery. Depuis des années. Jamais de surprise. Le Ebook est vraiment tres utilise pour tester et savoir si le module fonctionne ou pas avant de creer ses propres skteches.

Prima spul, werkt naar behoren!

Se upp med beteckningarna på pinnarna, kan vara lite förvillande.

These AZDelivery D1 Mini (ESP8266 / ESP-12E) boards are excellent. Build quality is solid, pins are straight and well soldered, and every board in the 5-pack worked perfectly out of the box. They are 100% compatible with Wemos D1 Mini, so all existing shields, cases, and examples work without any issues. Flashing and programming is effortless — Arduino IDE, ESPHome, or Lua all work smoothly. WiFi performance is stable and reliable, with fast connections and no random dropouts. Despite their small size, these boards are surprisingly powerful and perfect for IoT projects, sensors, relays, displays, and Home Assistant integrations. Power consumption is low, the USB interface is dependable, and the overall design feels well thought out. Having five boards in one pack is great value and makes prototyping fast and flexible. If you’re building ESP8266-based projects, these are a no-brainer. Reliable hardware, excellent compatibility, and unbeatable value. Five stars — a must-have for makers and DIY electronics projects.

Bien emballé. Ça a été rapide. Bonne expérience.