Wireless Type | Bluetooth |
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HiLetgo ESP32 ESP-32 ESP-32S ESP32S WiFi Bluetooth Wireless Board Module Based ESP-WROOM-32 Dual Core Mode CPU
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Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
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Purchase options and add-ons
Brand | HiLetgo |
Ram Memory Installed Size | 4 MB |
Memory Storage Capacity | 4 MB |
Connectivity Technology | Wi-Fi |
Wireless Communication Standard | Bluetooth |
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This Item HiLetgo ESP32 ESP-32 ESP-32S ESP32S WiFi Bluetooth Wireless Board Module Based ESP-WROOM-32 Dual Core Mode CPU | Recommendations | dummy | dummy | dummy | dummy | |
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Price | $9.99$9.99 | -6% $15.88$15.88 Typical: $16.88 | $9.46$9.46 | $18.99$18.99 | $14.59$14.59 | $22.88$22.88 |
Delivery | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it Apr 10 - 23 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 |
Customer Ratings | ||||||
Easy to use | 3.0 | 4.0 | — | 4.6 | 4.6 | 4.4 |
Value for money | 2.9 | 4.0 | — | 3.8 | 4.0 | 4.4 |
Accuracy | 2.8 | 4.2 | — | — | 3.6 | — |
Picture quality | — | 3.4 | — | 3.5 | 3.9 | — |
For beginners | — | 2.9 | — | 3.3 | 3.5 | — |
Sold By | HiLetgo | Teyleten Robot-US | Ironctic | Aitrip | Deeliuerr | Teyleten Robot-US |
hardware interface | bluetooth | bluetooth | bluetooth | usb | — | usb |
connectivity tech | Wi-Fi | Wi-Fi, WLAN | USB, Wi-Fi | Wi-Fi | Wi-Fi, WLAN | Wi-Fi |
wireless standard | bluetooth | 802 11 BGN, bluetooth | bluetooth | bluetooth | 2.4 ghz radio frequency | bluetooth |
core count | 2 | 2 | 2 | 2 | 3 | — |
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Product information
Technical Details
Brand | HiLetgo |
---|---|
Item model number | 3-01-1483 |
Item Weight | 0.317 ounces |
Product Dimensions | 2.24 x 0.98 x 0.55 inches |
Item Dimensions LxWxH | 2.24 x 0.98 x 0.55 inches |
Number of Processors | 2 |
Manufacturer | HiLetgo |
ASIN | B077KJNVFP |
Is Discontinued By Manufacturer | No |
Date First Available | August 28, 2019 |
Additional Information
Customer Reviews |
3.9 out of 5 stars |
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Best Sellers Rank | #909 in Single Board Computers (Computers & Accessories) |
Warranty & Support
Feedback
Product Description
Lithium battery interface (battery not include), 500mA Max charging current.
Product specifications:
Size: 57*25*14mm
Weight: 8g
Chip: ESP32-WROOM-32
Working voltage: 3.3V
GPIO: 28
Digital I/O Pins: 26
Analog I/O Pins: 12
Maximum computing speed: 240Mhz
USB chip: CP2104
Storage capacity: 4MBytes
Power plug: PH-2 2.0mm
Connection: Micro-USB
Package Included:
1 x 16pin
1 x 20pin
1 x ESP32 Board
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like how easy it is to work with the LOLIN32. They say it's a great board for beginners and can easily port sketches from ESP2866. However, some customers have reported issues with the battery connection, charging, and quality of the product. They mention that the battery is wired backwards and the device doesn't power on. Customers also report issues with quality and battery charging. Opinions are mixed on performance.
AI-generated from the text of customer reviews
Customers find the single board computer easy to work with and port sketches from ESP2866.
"...Easy to use with either the Arduion IDE or PlatformIO.A number of people have reported that downloading is hit or miss...." Read more
"A typical ESP32 board thats easy to use and reliable for home or commercial use." Read more
"...Which is a shame because these LOLIN32 boards are so easy to work with and easily take code ok.Did I get a bunk board? Or is" Read more
"Easily ported sketches from ESP2866." Read more
Customers are mixed about the performance of the single board computer. Some mention that it works well, while others say that it exhibits the same points of failure. Some customers also say that the board has a faulty power circuit.
"...board for hobby projects.. I have purchased 6 of them and never had any issues. Easy to use with either the Arduion IDE or PlatformIO...." Read more
"...of other reviewers here with a similar experience it’s not a reliable product." Read more
"Works great so far! Make sure your wires are the right way in your batteries connector though...." Read more
"...No issues so far. Cheaper than a pi counterpart and lots of support out there." Read more
Customers are dissatisfied with the battery charging of the single board computer. They say that the most important part of the device doesn't work, and the board doesn''t power on. The power circuit is bad, and it does not charge the battery.
"Unable to power board or get to turn on with the power connector.Note the board has it backwards...." Read more
"...When connecting USB the board boots up okay.Does not charge battery and does not run from batteries.Tried both boards." Read more
"...Too hard to work with, may not be totally functional. Could be my copy I guess." Read more
"...charged battery to it (yes, the polarity is correct) and device doesn't power on. If I plug power in via the usb, board works...." Read more
Customers are dissatisfied with the quality of the single board computer. They mention that it would not upload, it takes many download tries before one works, and that the code upload is hit or miss.
"...A number of people have reported that downloading is hit or miss. If you put a small capacitor between GND and EN, downloads will work everytime." Read more
"...IDE or the VS Code IDE with PlatformIO, this board does not reliably take a code upload. It simply does not sense the code is coming...." Read more
"Almost impossible to get the upload to work. Must use CPU speed 40, upload speed 115k...." Read more
"...It too would not upload. Junk! Maybe if needs a capacitor between goi1 and ground, or whatever, but why not buy one that actually works easily" Read more
Customers are dissatisfied with the battery connection of the single board computer. They mention that the board has the battery connections wired backwards for most batteries.
"...Note the board has it backwards. JST PH 2.0 pins are a standard.Board has + & - backwardsI saw this before connecting so no issue...." Read more
"This is dangerous has the battery connection wired backwards for most batteries! Awful!" Read more
"IMPORTANT WIRES MAY BE BACKWARDS!!!..." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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A number of people have reported that downloading is hit or miss. If you put a small capacitor between GND and EN, downloads will work everytime.
I contacted the company and explained the situation just as above and asked for a replacement board. All I got back was a canned message from "Cindy" with information on how to download the standard ESP32 tools.
Luckily Amazon is replacing it so I'll update this review based on how the replacement board works.
Update: We’ll I received the replacement. It worked the first time I used it with a battery and via USB but the next time I tried it the same thing happened. The board overheated at the charging circuit and smoke came out. So I have reduced the rating from two stars to one star. Look elsewhere. Obviously given my experience and the experience of other reviewers here with a similar experience it’s not a reliable product.
Note the board has it backwards. JST PH 2.0 pins are a standard.
Board has + & - backwards
I saw this before connecting so no issue. Just switched my wires to the source so board doesn't fry.
But still nothing! Not accepting 5v or 3.3v.
Bad charging circuit.
Which is a shame because these LOLIN32 boards are so easy to work with and easily take code ok.
Did I get a bunk board? Or is
Also note that you GPIO 0 needs to be tied to ground to put it in program mode - add a button or jumper to tie GPIO 0 to GND to upload new code then release/unjumper and hit the RESET button to run your new code. It'd be a lot nicer if they made that dance easier but it's not too bad once you get it down.
Top reviews from other countries
Das zweite Board funktionierte nur eingeschränkt. Die LED von der Akkustatusanzeige blinkte wie wild (laut im Internet gefundener Dokumentation ist das wohl bei dem SteuerIC für den Akkubetrieb eine Signalisierung einer Fehlfunktion. Programmierung ging auch nach ein paar Versuchen allerdings tat sich dann der WLAN etwas schwer. Musste daher leider das Board als defekt zurückgeben (Amazon hat bei so etwas mal die Ersatzlierferung einer fehlerfreien Ware weggelassen). Hoffe mal das es jetzt mit der Erstattung klappt.
Bin daher etwas entäuscht, da nur eines von zwei Boards funktionierte. Daher auch nur 3 Sterne, hätten beide Boards funktioniert wären es von mir 5 Sterne gewesen.
Su refigrafia, nombre de los pines, creo que es justa, soldados ya casi no se ve
Pero el hecho de tener 4 estrellas es debido a que le falta una cosa para ser una compra redonda. Que menos que un cablecito de 5 o 10cm con el conector correspondiente para la batería ? Ahora tengo que comprarlo a parte (creo que es el 2.0mm JST PH 2-pin) Sería un detalle que se incluyera.
Por lo demás, es breadboard frindely. Ver la foto. Permite tener una fila de pins libre.
Reviewed in Spain on January 27, 2022
Su refigrafia, nombre de los pines, creo que es justa, soldados ya casi no se ve
Pero el hecho de tener 4 estrellas es debido a que le falta una cosa para ser una compra redonda. Que menos que un cablecito de 5 o 10cm con el conector correspondiente para la batería ? Ahora tengo que comprarlo a parte (creo que es el 2.0mm JST PH 2-pin) Sería un detalle que se incluyera.
Por lo demás, es breadboard frindely. Ver la foto. Permite tener una fila de pins libre.