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)

NodeMCU (variant of Wemos)

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 ***@***.***>

carljdp/D1 Mini ESP8266.md