SP-Cow ESP32S ESP32 Development Board 2.4GHz Dual-Mode WiFi+ Bluetooth Dual Cores Microcontroller Processor, Antenna Module with RF AMP Filter AP STA IDE Ultra Low Power (2 Pcs)

Great value. I’always been interested in electronics/ home automation, and these are a great starting point. I’ve used these for esp home to detect the precense of our iphones in the room with the esppresence monitor. I’ve got my son interested in wled, which he has now used and running, providing a way better (and cheaper) led lighting system than philips hue.

I've flashed ESPHome onto six of these, and they work great. I can't think of anything negative to say.

I've bought these twice now from different sellers. My first was a single module which claimed to be Version 3. It needed the button pressing when booting and was temperamental at times. This three pack claim to be Version 1 (so I had to change compiler settings). Flashing and booting are more reliable.There's obviously a lot of extra circuitry on top of the ESP32 to manage things like the serial communication. Unfortunately this means that it's not possible to bring deep sleep current down below 10mA if booting normally from the 3V3 pins, even with the orange LED desoldered. This will limit its use in battery powered long running applications. It was not possible to achieve the sleep currents in the micro-amps advertised for the ESP32.ESP-Now was also limited. It operates in the 2.5GHz WiFi band and claims a long range towards 1km in free space. I found even with long range mode enabled in the domestic environment (so walls and WiFi noisy) I was not achieving more than about 10 meters range.Both of these things mean that for my application I've had to use the home network for communication (I'm seeing some packet drops but that could be just the nature of UDP) and will have to provide mains power not battery.The dev environment is VSCode and Espressif working in C. If you've ever been spoiled by Eclipse/Java (even as it was back in the early 2000s) then expect a rude return to the 1980s. It's little better than EMACS or VI was back in those days. Its refusal to find stdint.h at the moment is causing most issues as it means as far as VSCode is concerned nothing compiles even though I can compile and run the code on the command line.

Delivered next day after ordering on Sunday - Thanks you Amazon.Both boards perfect; Well constructed and now flashed with Annex RDS.Note : D14 may be incorrectly labelled as D11.TO FLASH THE MODULE :-Connect to USB serial port.Press and hold BOOT.Press and release EN.Start the flash downloadRelease BOOTWait for download completionPower-cycle the module.Update - August 2021 :-I've just received three more of these boards but these will flash without having to press the buttons. I can see an additional resistor tacked across to the 'EN' pin so it looks like the UART now has full control over the flashing procedure.

Bit of a gamble this one. 2 ESP32s for £14.29!!!I bought a single ESP32 on Ebay from transparent-shopping1 for £11.29. This was a bad purchase! Not only did it not work (dead as a Dodo) but Mr Abbaspour Noghani refused a refund!! Whereas Sp-Cow product.....THIS IS A REALLY GOOD DEAL!! Would recommend it to those looking for an ESP32

⭐⭐⭐⭐⭐ GOOD HONEST HELPFUL SELLERS THE BOARDS ARE GOOD WHEN FLASHED WITH WLED OR OTHER SOFTWARE RECOMMENDED ITEM/SELLER STAR 5 ⭐⭐⭐⭐⭐

Amazing microcontroller. Came quickly and very well packaged. Really useful with great features in such a small size. I’m using it to interface relays and build a smart home.

A good esp32 spoilt by lack of protection in packaging which led to mine being delivered with bent pins.

Per pura comodità volevo tenere sotto controllo la carica della batteria del mio spazzolino elettrico oral-b io series 6 sulla dashboard di home assistant, quindi mi serviva un proxy bluetooth, perché il raspberry col sistema operativo hassio si trova piuttosto lontano dal bagno e il segnale bluetooth non ce la fa ad attraversare muri e pavimento; dopo varie ricerche online ho deciso di acquistare questo microcontrollore e al momento sono più che soddisfatto: collegato al pc tramite la sua porta micro usb e alla pagina dedicata ai proxy bluetooth installa i driver e l'app per home assistant senza alcun genere di difficoltà, non ho dovuto schiacciare il pulsante di reset o installare qualche driver per windows 11, infatti è stato sufficiente selezionare la wlan personale e scrivere la relativa password, dopodiché mi ha fatto subito vedere l'entità della batteria dello spazzolino. Infine con la stampante 3D ho stampato uno degli innumerevoli box che si trovano gratuitamente online in formato .stl. Questo esp32 utilizzato come proxy bluetooth mi sento senz'altro di consigliarlo.

Funktioniert einwandfrei

Los he usado para crear dos devboards wifi de Flipper y perfectas, sin problemas de instalar firmware ni de malfuncionamiento de pines.

Producto 100% recomendable y el funcionamiento perfecto.

Me lo compré para mi proyecto de final de grado y la verdad que he obtenido unos resultados impresionantes. Es un chip increíble con un abanico de posibilidades gigantesco.