Getting started with the D1 mini (ESP8266)

D1 Mini ESP8266.md

D1 Mini (ESP8266)

1. Getting Started

1.1. Install the IDE:

In any web browser:

• From the Arduino website, download & install the latest Arduino IDE (v1.8 or later). Available for Windows, Mac, Linux & ARM.

1.2. Add the ESP8266 module libraries:

In the Arduino IDE: (original instructions) or docs here

• From File > Preferences, add a Boards Manager URL http://arduino.esp8266.com/stable/package_esp8266com_index.json
• From Tools > Board > Board Manager, search for D1 mini and install (+/- 150MB)
  

1.3. Connecting:

• From Tools > Port select the correct COM port# as assigned to the device.

1.4. Testing:

• From File > Examples > ESP8266 open the Blink Sketch
• Double check the pin asignment (For the D1 mini it should be <pin# here>)
• Verify the Sketch (check mark)
• Upload the code to the module (right arrow) The LED on the device should blink!
  

1.5 Troubleshooting

Linux

• if access /dev/ttyUSB is denied, try editing the .desktop launcher file

If you don't know the COM port you are connected on:

Note the different in console output before and after these commands:

• Windows: mode or goto Device Manager > Ports
• Mac ls /dev/tty.* && ls /dev/cu.* or ls /dev/*
• Linux ls /dev/tty.* && ls /dev/cu. or dmesg | grep tty*

2. The D1 Mini module

Specifications

• Fortunately the module includes a onboard 3.3V regulator (4A2D
• Analog input 0-1V (esp8266 github docs)
• Analog input 3.2V max (Wemos product page
• Output level conversion to drive relays
• 3V3 | 5V Tips & Tricks (Microchip)

Variants

Wemos (the original)

• D1 Mini (Wemos product page)
• Getting Started (Wemos)
• v2.2 Pin assignments (Wemos schematic)
• pin assignments (Wemos product page)
• read analog (wemos github)

NodeMCU (variant of Wemos)

• Website (no docs)
• Pin assignments (esp8266 github docs)

Other

Like the 'D1 Mini Node MCU' illegitimate-love-child from Micro Robotics - probably imported from AliExpress.com

• Original Wemos: Wemos Logo & version no, HC-340 USB chip, ESP8266-12S
• NodeMCU: (NodeMCU Logo)
• Fakes: No logo, no version, DOIT ESP-12N, square corners

USB Drivers

• Win|Mac Drivers
• Linux Drivers search for one compatible with your linux kernel version - if it doesn't work out of the box.

3. The ESP8266 Chip

• ESP8266 - A WiFi enabled microcontroller, not an officially supported Arduino chip. The ESP8266 Arduino project has implemented an Arduino Core library for the ESP8266 Chip
• Data Sheet v5.5 (Espressif Systems)
• Data Sheet v4.3 (Adafruit)

Electrical Characteristics (from datasheet)

• I/O Imax per pin: 12mA source | sink not specified
• Working voltage: 3.0 - 3.6V
• Typical consumpsion at full on: 140mA

4. Other Links

Youtube
EEVblog #998 - How To Program ESP8266 WiFi With Arduino (Video)

ESP8266 Arduino Project

• Github Documentation

ESP8266 Community Forums

• ESP8266 Community Forum

NodeMCU

• Code Examples

Definitions

(in the world of Arduino)

• sketch - A complete Arduino program
• setup - The setup routine run before the main loop (runs once)
• loop - The main program that runs continuously

I can't find the thread of comments at the moment, unless this is the first. One thing that initially through me off as well on my first attempts was the default baud rate set on the arduino ide's console. I have not worked with the board for a while, bit I can try help you out if you can give me a fuller idea of your setup and what you are trying to achieve. I'm sure I still have one or 2 of these boards at home, so I can try to replicate your setup.. Regards Carl J (Callie) du Preez home ***@***.*** freelancer trading as Grazer Web Systems <https://grazer.co.za>

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On Sun, Apr 3, 2022 at 4:33 PM chaz stone ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ I'm at a loss... I've tried 3 different boards (ESP32, ESP8266, and D1 MINI 8266) with 2 different IDEs (Arduino and PlatformIO) and a number of different pinouts. I either end up with a boot loop or a communication error such as this: Firmware Version: 0xFF = (unknown) WARNING: Communication failure, is the MFRC522 properly connected? Scan PICC to see UID, SAK, type, and data blocks... Setup done I've literally copied and pasted your code into both IDEs and checked and rechecked the pins: Communication Failure. Any help would be greatly appreciated. [image: PXL_20220403_142724370] <https://user-images.githubusercontent.com/9574049/161433020-ba9d3132-69dd-49c7-ab76-333986718754.jpg> [image: PXL_20220403_142732252] <https://user-images.githubusercontent.com/9574049/161433022-98b2ca41-7d30-4512-8127-b5546eb0c807.jpg> [image: PXL_20220403_142911585] <https://user-images.githubusercontent.com/9574049/161433024-c7366ae5-55c1-42ff-98be-957a43b89a9d.jpg> [image: PXL_20220403_143005426] <https://user-images.githubusercontent.com/9574049/161433026-be4f9368-2817-41f3-965f-4f762239c470.jpg> — Reply to this email directly, view it on GitHub <https://gist.github.com/e6a3f5a11edea63c2c14312b534f4e53#gistcomment-4119848>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABKSCOE7APXNHHUTDYCBEMLVDGTZ5ANCNFSM5SNIWNGQ> . You are receiving this because you authored the thread.Message ID: <carljdp/D1 Mini ***@***.***>