Espressif ESP32-DevKitC-VIE Development Board with ESP32-WROVER-IE, 4 MB Flash, 8 MB PSRAM, USB, Bluetooth, 802.11 N, Single Board Computer

C'est ce qu'il faut pour des applications ESP32 avec mémoire additionnelle PSRAM

This is the new ESP32-DevKitc_V4-VIE development board from Espressif. It has only been available for purchase for a few months. It is the latest iteration of the WROVER models that have the additional 8 megabytes of PSRAM (but only 4 MB can currently be used). Until now I have only seen these Espressif development boards offered with 4 megabytes of program flash memory. This model has double that -- 8 MB! So twice the memory and an extra 4 MB of usable PSRAM!To see details of the different ESP32s, google "Espressif Product Ordering Information." Based on that source, this WROVER-VIE uses the new ESP32-D0WD-V3 chip. It has an IPEX (ergo the "I" in "VIE") connector for an external antenna, as well as an onboard PCB antenna that is disabled. It is possible to convert it to use the onboard antenna, but that involves doing some micro-soldering to remove a tiny 0 ohm resistor and add a tiny solder bridge. So if you want to use the onboard antenna, I strongly suggest you order the VE (no "I") version that Amazon sells for the same price: https://www.amazon.com/Espressif-ESP32-DevKitC-VE-Development-Board/dp/B087TNPQCVHere is an example of an external antenna that works well https://www.amazon.com/gp/product/B01KBU61S8Features:240 Mhz CPU (configurable)80 Mhz Flash (configurable)IPEX connector for external antenna (buy the “VE” version if you want to use the onboard PCB antenna)OTA upgradeablePROs:Great price – only $11.008 Megabytes of flash memory8 Megabytes of PSRAM (but only 4 Megabytes can be used)Quality buildDoes not require that you manually put it in boot loader mode before flashingCONs:Due to its width, when installed in a breadboard, only one row of exposed pin sockets are availableI have used multiple models of the Espressif Esp32-devkitc_v4 development boards in the past and have been happy with them all. This one is my new favorite.

Il s'agit d'un modèle officiel ESPRESSIF, ESP32 DEVKIT-C VIE, c'est le même que le VE à l'exception près qu'il y a ici la possibilité d'ajouter une antenne externe.Ce modèle est vraiment parfait car il possède une mémoire flash de 8Mo et 4mo de mémoire vive supplémentaire (PSRAM).Je l'utilise pour faire fonctionner une machine complexe composée de multiples moteurs. A force de créer des TASK FREERTOS (Espressif framework IDF), la mémoire finissait pas se saturer. J'ai modifié l'implémentation pour utiliser la PSRAM et je n'ai plus aucun problème.La carte respire la rigueur et la robustesse, un bon produit que je recommande fortement.Colis arrivé par LaPoste en quelques jours.

This is an awesome board to tinker with. I have been able to get this development board on a breadboard. I have various brands of breadboards, and realized that if I use two Elegoo 830 point solderless breadboard, connected side by side, the ESP32-DevKit will fit perfectly in the middle of the combined breadboards.

The chip works fine and programs like any other esp32. But the manufacturer made some fatal mistake here. There is literally no WiFi range. I can only communicate with it if it’s sitting on top of my laptop and it’s in ap mode. It will not even try to connect to my router unless I set it atop my router. I think they forgot to solder the antenna to the chip.