Description:
Reviews:
5.0 out of 5 stars Works with ESP32
Hooked it up to an ESP32 - works no problem! Yes, there was some reading and video watching I had to do to get the pins right (couldn't get it to work with ESP32-C6, but S2 worked perfectly! I probably had to spend a bit more time with the C6 - just was lazy). So, as far as display itself - crisp and works as expected from an E-Ink display.
5.0 out of 5 stars Does exactly as advertised
Nothing unexpected, worked with my ESP32-WROOM-32D and platformio. When using the Eink library, use GxEPD2_420_GDEY042T81 as the eink driver. So the device initialization will look like this:// Pin Definitions for E-Ink Display#define EPD_CS 5#define EPD_DC 17#define EPD_RST 16#define EPD_BUSY 4GxEPD2_BW<GxEPD2_420_GDEY042T81, GxEPD2_420_GDEY042T81::HEIGHT> display(GxEPD2_420_GDEY042T81(EPD_CS, EPD_DC, EPD_RST, EPD_BUSY));
4.0 out of 5 stars Works as described
It works. Connecting the SPI interface with the supplied Dupont connectors requires care. One wrong pin and you could fry something. I triple checked everything. For people who can count above 2 this may not be a problem. Connected properly it works. Load up the Waveshare apis, use the right one and you're set.
5.0 out of 5 stars Working great with an ESP32
Came with a pigtail adapter so connecting the GPIO was super easy. Display is sharp and nicer than expected, refresh time feels faster than the other displays I read reviews on.
1.0 out of 5 stars A huge waste of time
Agree with others, these are awful. Highly unreliable, with even the default code only works part of the time. You really need to find a good combination of hardware to work with these, and they all seem to have a short life. I've been using these for years and stupidly kept buying new ones to either replace the failing old ones, or trying to get the new ones to work. I regret going do this rabbit hole. A huge waste of time, due to the limited options out there.
5.0 out of 5 stars This is truly low power
My current project when I Changed from 1602 to e-paper last two or more days on a charge.
5.0 out of 5 stars Bought 2 to make dynamic picture frames
These work great. I hooked them up to adrduino minis (3v) to create dynamic picture frames. Runs off of 2AA batteries. Picture frame updates every 3 minutes. So far both are still running on the original batteries (2 months).
2.0 out of 5 stars A massive time waster
Terrible, confusing documentation. Not even sure which Good Display panel this. They claim it uses a UC8196 driver but their source code use instructions that only appear UC8296 driver. Managed to get it working with B/W. Still cant figure out how to get grayscale. The documentation/source code on their website is like for multiple models and its hard to tell which model you have. Back of my board says its a REV v2.1 but when I look at the V2 source code its calling instructions which don't even exist in the driver IC. The V1 version works but doesn't have any grayscale.The source code is also bugged (out of bounds memory accesses), data lengths that dont match up with the driver documentation.Avoid unless you enjoy wasting your weekend trial and erroring.
Eink screen
Works well with Raspberry Pi Zero (1&2). Makes a neat little display to make map road book for trips.Partial screen update/refresh was surprisingly clean and quick.
Me encanta!!!
Este producto funciona muy bien, lo uso con un ESP32 de Lilygo (con Lora, oled)...Se necesita librería GxEPD2, y SI que tiene un "partial refresh" ;) (por lo menos el 4.2")
great screen, easy to use.
it came quickly, very safely packed and with instructions.the product itselfVERY Impressive screen. Super low power to update, an none at all to maintain the image :D (not as fast update as the little ones, but such a nice size for lots of info at longer updates.perfect for my weather display -it was easy to find examples for using it with the arduino ide (i had it going on a mega2560, esp8266 and i have it on the esp32, showing weather updates from the web, and my local sensors for a couple of months now without issues) - each with different libraries .
Kompaktes E-Paper-Display für vielseitige Projekte
Das 4,2 Zoll E-Paper Display Modul von Waveshare bietet mit 400 x 300 Pixeln eine klare Darstellung und ist ideal für DIY- und Maker-Projekte geeignet. Dank der Unterstützung von 3,3 V und 5 V lässt es sich flexibel mit Plattformen wie Raspberry Pi, Arduino oder Jetson Nano nutzen. Besonders praktisch ist der integrierte Controller mit SPI-Schnittstelle, der den Anschluss erleichtert und für eine stabile Kommunikation sorgt.Die Anzeige ist kontrastreich und bleibt auch ohne Stromverbrauch sichtbar, was E-Ink-Technologie besonders energieeffizient macht. Für Anwendungen wie kleine Dashboards, Infoanzeigen oder E-Book-ähnliche Projekte ist das Modul sehr gut geeignet.Ein kleiner Nachteil liegt in der Refresh-Rate: vollständige Aktualisierungen dauern länger als bei LCDs, was es weniger passend für schnelle Animationen macht. Für statische Inhalte funktioniert es jedoch zuverlässig und effizient.Insgesamt ein durchdachtes Display für Bastler und Entwickler, die stromsparende, gut ablesbare Visualisierungen benötigen.
Bien mais attention à la version
je mets 5 étoiles car ca fonctionne parfaitement... mais j'ai acheté 2 exemplaires à quelques mois d'intervalle... et la révision n'etant pas la même il faut adapter le script... meme entre 2.1 et 2.2 ca n'est pas transparent. attention donc a ce qui est écrit au dos quand vous le recevez... CHatGPT est votre ami pour adapter vos sketchs si besoin...
Visit the waveshare Store
Waveshare 4.2inch E-Ink Display Module Compatible with Raspberry Pi 5/4B/3B/Zero/Zero W/Zero 2W/Pico/Pico W/Pico WH, 400x300 Resolution SPI Interface
AED23948
Quantity:
Order today to get by 7-14 business days
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Imported From: United States
At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.
BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.
Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.
If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.
Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.
All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.
While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.
Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.
BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.
All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.
All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.
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Visit the waveshare Store
Waveshare 4.2inch E-Ink Display Module Compatible with Raspberry Pi 5/4B/3B/Zero/Zero W/Zero 2W/Pico/Pico W/Pico WH, 400x300 Resolution SPI Interface
AED23948
Quantity:
Order today to get by 7-14 business days
This item qualifies for free delivery
Imported From: United States
At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.
BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.
Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.
If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.
Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.
All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.
While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.
Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.
BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.
All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.
All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.
Description:
Reviews:
5.0 out of 5 stars Works with ESP32
Hooked it up to an ESP32 - works no problem! Yes, there was some reading and video watching I had to do to get the pins right (couldn't get it to work with ESP32-C6, but S2 worked perfectly! I probably had to spend a bit more time with the C6 - just was lazy). So, as far as display itself - crisp and works as expected from an E-Ink display.
5.0 out of 5 stars Does exactly as advertised
Nothing unexpected, worked with my ESP32-WROOM-32D and platformio. When using the Eink library, use GxEPD2_420_GDEY042T81 as the eink driver. So the device initialization will look like this:// Pin Definitions for E-Ink Display#define EPD_CS 5#define EPD_DC 17#define EPD_RST 16#define EPD_BUSY 4GxEPD2_BW<GxEPD2_420_GDEY042T81, GxEPD2_420_GDEY042T81::HEIGHT> display(GxEPD2_420_GDEY042T81(EPD_CS, EPD_DC, EPD_RST, EPD_BUSY));
4.0 out of 5 stars Works as described
It works. Connecting the SPI interface with the supplied Dupont connectors requires care. One wrong pin and you could fry something. I triple checked everything. For people who can count above 2 this may not be a problem. Connected properly it works. Load up the Waveshare apis, use the right one and you're set.
5.0 out of 5 stars Working great with an ESP32
Came with a pigtail adapter so connecting the GPIO was super easy. Display is sharp and nicer than expected, refresh time feels faster than the other displays I read reviews on.
1.0 out of 5 stars A huge waste of time
Agree with others, these are awful. Highly unreliable, with even the default code only works part of the time. You really need to find a good combination of hardware to work with these, and they all seem to have a short life. I've been using these for years and stupidly kept buying new ones to either replace the failing old ones, or trying to get the new ones to work. I regret going do this rabbit hole. A huge waste of time, due to the limited options out there.
5.0 out of 5 stars This is truly low power
My current project when I Changed from 1602 to e-paper last two or more days on a charge.
5.0 out of 5 stars Bought 2 to make dynamic picture frames
These work great. I hooked them up to adrduino minis (3v) to create dynamic picture frames. Runs off of 2AA batteries. Picture frame updates every 3 minutes. So far both are still running on the original batteries (2 months).
2.0 out of 5 stars A massive time waster
Terrible, confusing documentation. Not even sure which Good Display panel this. They claim it uses a UC8196 driver but their source code use instructions that only appear UC8296 driver. Managed to get it working with B/W. Still cant figure out how to get grayscale. The documentation/source code on their website is like for multiple models and its hard to tell which model you have. Back of my board says its a REV v2.1 but when I look at the V2 source code its calling instructions which don't even exist in the driver IC. The V1 version works but doesn't have any grayscale.The source code is also bugged (out of bounds memory accesses), data lengths that dont match up with the driver documentation.Avoid unless you enjoy wasting your weekend trial and erroring.
Eink screen
Works well with Raspberry Pi Zero (1&2). Makes a neat little display to make map road book for trips.Partial screen update/refresh was surprisingly clean and quick.
Me encanta!!!
Este producto funciona muy bien, lo uso con un ESP32 de Lilygo (con Lora, oled)...Se necesita librería GxEPD2, y SI que tiene un "partial refresh" ;) (por lo menos el 4.2")
great screen, easy to use.
it came quickly, very safely packed and with instructions.the product itselfVERY Impressive screen. Super low power to update, an none at all to maintain the image :D (not as fast update as the little ones, but such a nice size for lots of info at longer updates.perfect for my weather display -it was easy to find examples for using it with the arduino ide (i had it going on a mega2560, esp8266 and i have it on the esp32, showing weather updates from the web, and my local sensors for a couple of months now without issues) - each with different libraries .
Kompaktes E-Paper-Display für vielseitige Projekte
Das 4,2 Zoll E-Paper Display Modul von Waveshare bietet mit 400 x 300 Pixeln eine klare Darstellung und ist ideal für DIY- und Maker-Projekte geeignet. Dank der Unterstützung von 3,3 V und 5 V lässt es sich flexibel mit Plattformen wie Raspberry Pi, Arduino oder Jetson Nano nutzen. Besonders praktisch ist der integrierte Controller mit SPI-Schnittstelle, der den Anschluss erleichtert und für eine stabile Kommunikation sorgt.Die Anzeige ist kontrastreich und bleibt auch ohne Stromverbrauch sichtbar, was E-Ink-Technologie besonders energieeffizient macht. Für Anwendungen wie kleine Dashboards, Infoanzeigen oder E-Book-ähnliche Projekte ist das Modul sehr gut geeignet.Ein kleiner Nachteil liegt in der Refresh-Rate: vollständige Aktualisierungen dauern länger als bei LCDs, was es weniger passend für schnelle Animationen macht. Für statische Inhalte funktioniert es jedoch zuverlässig und effizient.Insgesamt ein durchdachtes Display für Bastler und Entwickler, die stromsparende, gut ablesbare Visualisierungen benötigen.
Bien mais attention à la version
je mets 5 étoiles car ca fonctionne parfaitement... mais j'ai acheté 2 exemplaires à quelques mois d'intervalle... et la révision n'etant pas la même il faut adapter le script... meme entre 2.1 et 2.2 ca n'est pas transparent. attention donc a ce qui est écrit au dos quand vous le recevez... CHatGPT est votre ami pour adapter vos sketchs si besoin...
Similar suggestions by Bolo
More from this brand
Similar items from “Single Board Computers”
Share with
Or share with link
https://www.bolo.ae/products/UO074AE1FJ2