wall-ink
ESP8266 based e-ink conference room scheduler display. Repurposable through PHP-based server plugins to display any image. Outlook, Exchange, Booked, Google Calendar API and iCal server scheduler support. (by caedm)
nodemcu-devkit-v1.0 | wall-ink | |
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10 | 3 | |
1,342 | 166 | |
0.4% | 0.0% | |
0.0 | 10.0 | |
over 6 years ago | over 4 years ago | |
Batchfile | C | |
MIT License | GNU General Public License v3.0 only |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
nodemcu-devkit-v1.0
Posts with mentions or reviews of nodemcu-devkit-v1.0.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-02-02.
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Component unknown
This appears to be a NodeMCU, which is an open source dev board: you can just look up the schematics
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Update: Soldered a 1000uF THT Capacitor to the ESP01
ESP8266 boards out there, such as the NodeMCU (see here, under ESP-12 Core), normally have a 100uF SMD Tantalum capacitor for this purpose.
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I'm having trouble powering a 5v relay using vin output on a nodemcu-esp12e
It should be fine. The Vin pin is indeed normally Voltage IN but on the nodemcu board as per the schematics it should work given that the 5V supply is powerful enough. I've done it myself multiple times. What type of relay module do you have? Have you connected the grounds together if using separate power supplies?
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E-Ink Work From Home Calendar
Board: NodeMcu 1.0 (I de-soldered the LEDs and serial chip to save power once programmed)
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esp8266 custom dev board
The NodeMCU v1.0 is based on the CP2102. Doesn't get much eachier than that.
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Board not booting with Vin 5v until reset button is pressed
Guess my only solution would be having to wire it to the USB input somehow. If I could somehow find the VU pin it would allow me to perhaps solder that pin directly to the Vin pin? Unfortunately this version did not populate VU on the board. From what I can see in schematics,(This is V1 so it may not be true) VU has a Schottky Barrier Plastic Rectifier Diode (Schematic) between it and Vdd (VIn) Perhaps tapping into that port could work? (This is V1 so it may not be true) VU has a Schottky Barrier Plastic Rectifier Diode (Diagram) between it and Vdd (VIn)
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Before I blow up my NodeMCU is this correct?
I don't see VIN max mentioned there but https://github.com/nodemcu/nodemcu-devkit-v1.0/blob/master/Documents/NCP1117ST33T3G.PDF says 10V if yours has the 1117. Either way 12V is pushing it, and as I mentioned lead is greater than 12V when charged, just like other chemistries like Lithiums say ~3.7V but charged are actually around 4.2V
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What exactly did I buy?
It has the same pinout as a NodeMCU except for that ADC pin where the NodeMCU has a reserved pin. The ADC pin might differ from the A0 pin by including a voltage divider to match a D1 mini, but I'm just speculating and I'd recommend not using it. It looks different because they put the parts of the ESP-12 module directly on the PCB, which is going to same some money on the build. You should be fine treating it like a NodeMCU.
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[Nodemcu devkit v 1.0] Does this non pop have anything to do with waking up from deep sleep?
Yes. If you look at the schematic and prints (that's 1.0, but not much has changed), that's R10. Connects GPIO16 (aka XPD_DCDC) to /RST (aka EXT_RSTB). From the ESP8266 datasheet:
wall-ink
Posts with mentions or reviews of wall-ink.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-02-02.
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Anyone else’s Joan Displays Need Licenses Now?
I'll use this thread as an opportunity to mention the open-source e-ink based solution out of BYU. (I have no affiliation.)
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Meeting Room solution with iPad display
This is an in-house solution but it's better than most of what you can buy commercially (and we've had Crestron iPad-controlled meeting rooms). I wish we could buy PoE (wired) versions of this without needing to make physically build ourselves, or get roped into some vendor's subscription rodeo.
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E-Ink Work From Home Calendar
I took inspiration from this project: Wall Ink and use their Server Plugin to build the images for me. All programming done in Arduino IDE against the esp8266.
What are some alternatives?
When comparing nodemcu-devkit-v1.0 and wall-ink you can also consider the following projects:
GxEPD - A simple E-Paper display library with common base class and separate IO class for Arduino.
GxEPD2 - Arduino Display Library for SPI E-Paper Displays
Arduino - ESP8266 core for Arduino
wall-ink-server - Accompanying server software for the wall-ink project. Plugins for room scheduling through Outlook, Exchange, iCal, Booked, and Google Calendar API.