Top products from r/esp32
We found 30 product mentions on r/esp32. We ranked the 36 resulting products by number of redditors who mentioned them. Here are the top 20.
1. HiLetgo ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA for Arduino IDE
Sentiment score: 0
Number of reviews: 4
2.4GHz Dual Mode WiFi + Bluetooth Development BoardUltra-Low power consumption, works perfectly with the Arduino IDESupport LWIP protocol, FreertosSupportThree Modes: AP, STA, and AP+STAESP32 is a safe, reliable, and scalable to a variety of applications
2. M5Stack Gray Kit 240 MHz Dual Core ESP32 Development Stackable Kit 16 MB Flash Built-in MPU9250, Integrated 520 KB SRAM Supported Ar duino, Blockly Language with UIFlow, Micropython
Sentiment score: 0
Number of reviews: 2
Material of shell: plastic. This is a new upgrade version which has built-in MPU9250;Connect several lines, it can do small toys; In addition, it can also be used for industrial control, hotel panel, aluminum cutting machine, door lock system.Download the code here: https://github.com/m5stack; https...
3. MakerFocus ESP32 OLED Development Board WiFi Bluetooth Dual Module with Cable ESP WROOM 32 Wemos Lolin for Arduino
Sentiment score: 1
Number of reviews: 2
★Links to documentations: https://github.com/search?utf8=%E2%9C%93&q=esp32&ref=simplesearch; http://espressif.com/en/esp-wroom-32/resources; https://github.com/FablabTorino/AUG-Torino/wiki/Wemos-Lolin-board-(ESP32-with-128x64-SSD1306-I2C-OLED-display); https://github.com/espressif/arduino-esp32#in...
4. New Switch Power Supply 3.3V 60A 198W 215x115x30mm for Mean Well MW MeanWell LRS-350-3.3
Sentiment score: 0
Number of reviews: 1
5. ANGEEK 5pcs Micro SD Storage Board TF Card Module Slot Socket Memory Shield Module SPI for Arduino Micro SD Card Reader Module
Sentiment score: 0
Number of reviews: 1
It supports Micro SD card,Micro SDHC cardBoard level conversion circuit, namely, interface level for 5 V or 3.3 VPower supply:4.5V~5.5V,the onboard 3.3 V voltage regulator circuitCommunication interface is a standard SPI interface4 M2 screw positioning hole, easy to install
6. ESP-WROVER-KIT Development Board
Sentiment score: 1
Number of reviews: 1
PC connectivity: USBPower supply options: USB (by default), or 5V/GND header pins, or 3V3/GND header pinsSDK: ESP-IDF source code and example applicationsFlash / PSRAM:4 MB Flash+4 MB PSRAM
7. Xiuxin ESP32 Development Board 2.4GHz Dual-Mode WiFi Bluetooth Dual Cores ESP32s Antenna Module Board (1 pc)
Sentiment score: 1
Number of reviews: 1
It is 2.4GHz Dual Mode WiFi + Bluetooth Development BoardDual Core ESP-32 Antenna ModuleSupport LWIP protocol, Freertos .SupportThree Modes: AP, STA, and AP+STADevelopment Board aplication : https://github.com/Nicholas3388/LuaNode
8. MakerFocus ESP32 Development Board 4M PSRAM Version MPU9250 9DOF Sensor Color LCD, WiFi Bluetooth Expandable Support Arduino and Micropython Development,with 150mAh Battery
Sentiment score: 0
Number of reviews: 1
This is the New M5Stack 4M PSRAM Version Development Kit.Note: The instruction is equipped with the product!Download the code here: https://github.com/m5stack; https://github.com/m5stack/M5Stack; http://forum.m5stack.com/; More details of this product: https://www.youtube.com/watch?v=l-PnOi3tM1wIt i...
9. LGDehome 100A/50mA SCT-013-000 Non-invasive AC Current Sensor Split Core Transformer Split Core AC Current Sensor Transformer
Sentiment score: 0
Number of reviews: 1
Non-linearity 3%(10%-120% rated input current),Opening size:13mmx13mm1.5m leading wire,Φ3.5 3 core plug standard output.Two form of output current, voltage (voltage output built-in the sampling resistor).Operating Temperature: -25 C ~ +70 CApplications: for AC motors, lighting equipment, air compre...
10. DSD TECH USB to TTL Serial Converter CP2102 with 4 PIN Dupont Cable Compatible with Windows 7,8,10,Linux,Mac OSX
Sentiment score: 0
Number of reviews: 1
Designed to be used for USB to TTL electronic projects, easy to connect to your MCU. Status LED for TX,RXCP2102 USB to TTL Transfer chip from Silicon Labs,Industrial chip, high quality, super stable.Standard USB power supply, the lead pin includes: 3.3V, GND, TXD, RXD, 5V, GNDSupports Windows 2000, ...
11. Tebuyus ESP32 Test Board Small Batch Burn Fixture For ESP-WROOM-32 Module
Sentiment score: 1
Number of reviews: 1
ESP32 Test Board Small Batch Burn Fixture For ESP-WROOM-32 Module
12. SPQ Brands NA425 YG03 Gate and Window Alarm, Grey
Sentiment score: 0
Number of reviews: 1
GATE & WINDOW ALARM – The YardGard Gate and Window Alarm is an effective and affordable warning system that features a 120 dB alarm to alert you and your neighbors of unauthorized entry and activity.IDEAL FOR POOL SAFETY – The UL 2017 YardGard alarm adds an effective layer of protection against ...
13. Makerfocus D1 Mini NodeMcu 4M Bytes Lua WiFi Development Board Base on ESP8266 ESP-12F N Compatible NodeMcu Arduino
Sentiment score: 1
Number of reviews: 1
Instruction document: https://drive.google.com/open?id=14WNRwFAciU1mWYn3vkeNED8ZthPkzloFThis is D1 mini, it is a mini WIFI board based on ESP-8266EX.WIFI Development Board, 4M bytes. Arduino ompatibility. Using the Arduino IDE for programmingSupport OTA on line5V 1A switching power supply (switching...
14. Genuine Espressif (not a Clone) ESP32 ESP32-DEVKITC inc ESP-WROOM-32 soldered Female HEADERS
Sentiment score: 0
Number of reviews: 1
Latest OCTOBER 2019 MANUFACTURED Espressif Factory production unitsESP32-DEVKITC-F V4 board with latest ESP-WROOM-32D moduleESP32-WROVER-KIT is now available on AmazonStocked in Amazon USA warehousesSee Olimex and Espressif websites for technical information.
15. Icstation 3V 1 Channel Relay Power Switch Module with Optocoupler Opto Isolation High Level Trigger for IOT ESP8266 Development Board (Pack of 5)
Sentiment score: 1
Number of reviews: 1
【Optocoupler Isolator】 3V/3.3V power relay module supports photocoupler isolation control.【High Level Trigger】The relay module is triggered by high level signal, which can be input from microcontroller IO.【Jumper Caps】You are free to select whether the relay and the signal share the same...
16. MagiDeal 10pcs Female Micro USB to DIP 5-Pin Pinboard 2.54mm Micro USB Type
Sentiment score: 1
Number of reviews: 1
17. Anker 60W 10-Port USB Wall Charger, PowerPort 10 for iPhone Xs/XS Max/XR/X/8/7/6s/Plus, iPad Pro/Air 2/Mini, Galaxy S9/S8/S7/Edge/Plus, Note 8/7, LG, Nexus, HTC and More
Sentiment score: 1
Number of reviews: 1
The Anker Advantage: Join the 50 million+ powered by America's leading USB Charging Brand.Advanced Charging Technology: PowerIQ and VoltageBoost combine to provide the fastest possible charge up to 2.4 amps per port or 12 amps overall (Does not support Qualcomm Quick Charge).Ultra Powerful: ten port...
18. RaySun 4433265 90 Degree Micro-B Male to Female Extension Cable Syncing and Charging Micro USB Extension Cable, 2 Count
Sentiment score: 0
Number of reviews: 1
Micro-USB male to female extension cable adapter(30cm L)90 degree right angle for very convenient connectionNote: Micro-USB is a 5pin connector, not for same device with 11pinSupports high speed data transfer rates up to 480 MBPS
19. uxcell a12080300ux0453 2.54mm Pitch 4 Pins DIP Mounting Photo Coupler PC817 Pack of 10
Sentiment score: 0
Number of reviews: 1
Product Name : Photo Coupler;Model : PC817Material : Plastic, Metal;Pin Number : 4Size : 8 x 4 x 7mm/0.3" x 0.2" x 0.3" (L*W*H);Pin Pitch : 2.54mm/0.1"Weight : 3gPackage Content : 10 x Photo Coupler
20. Diymall Voltage Sensor Dc0-25v for Arduino with Code(Pack of 2pcs)
Sentiment score: 1
Number of reviews: 1
Voltage input range: DC0-25VVoltage detection range: DC0.02445V-25VVoltage Analog Resolution: 0.00489VDC input connector: Terminal cathode connected to VCC, GND negative poleOutput interface: "+" then 5/3.3V, "-" then GND, "s" then the Arduino AD pins
This ended up being my fix, thank you!
I was using my USB to Serial adapter to power the ESP32-CAM after uploading the sketch. When I was uploading, I had the adapter set to 3.3v and it connected to the 3.3v pin on the board.
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This allowed me to upload the sketch but the camera would not work.
I swapped the USB to Serial adapter to 5v, plugged the power into the 5v pin and POOF, it works!
I'm now running my ESP32-CAM off of USB breakout boards and they are working great.
Working on integrating these into Home Assistant now. Thanks!
If you want a hot fix, set pinmode to input instead of switching to high. Make sure there's no sort of pullup on the pin. I had good luck with the spi pins.
By setting it to input, the pin will hopefully go into a floating or hi-z state. If all is well, the relay will open when switched to input and close when switch to HIGH output.
Worked for me until I found some single 3v relays. You could also use transistors to convert signal to 5v.
Adafruit is always going to be overpriced. Their ESP32 board is about the same price as the Sparkfun board. Avoid adafruit whenever possible, you can usually get the exact same stuff on Amazon or Ebay for a far better price.
You can't really go wrong with a $10 ESP32 dev board from Amazon or wherever. Once you learn enough about your first dev board, and decided you need something else, you'll know better what to purchase for your specific needs. You can get quite a lot done with just the simple $10 dev board. I wouldn't go with a custom-made dev board with an exposed ESP32 chip on it (like the Sparkfun board) - you should definitely use a dev board with the ESP32-WROOM module on it, like most of them out there. You would most likely be using the ESP32-WROOM (or WROVER) modules in any project you'll do, and learning how the ESP32-WROOM module works and its pinouts is invaluable knowledge you won't get with the Sparkfun board.
Would it be easier perhaps to switch over to the esp32-wrover-b chip? For my project, I can’t use any development boards, so I’m thinking I can buy the Wrover chip and place the pins for the camera headers like how they are in this rover-kit Wrover kit by following the esp schematic.
I like the Lolin ESP 32 .
I like this one cause it has a built in OLED, GPIOs, and LiPo Battery Connection.
You can program these using Arduino, but I beleive you can program this using Micro Python as well.
Lolin also has a ESP 32 board that doesn't have the OLED, but does come with the GPIO, and LiPo connections. https://wiki.wemos.cc/products:d32:d32
If you just want the ESP8266, why don't you get one from Amazon Prime? Probably cheaper/easier than me shipping you a banged up one :)
https://www.amazon.com/Makerfocus-NodeMcu-Development-ESP8266-ESP-12F/dp/B01N3P763C/
Are you talking about actually deploying the ESP32 out somewhere, or just for development? You mention deployment, but why do you need both during deployment? What boards are you using? Most of the development boards have a micro USB connector on them, so I power them from a bog standard 5v micro USB power supply. You can get USB hubs that will power 10 boards from one hub.
In terms of powering from 3.3 volts, I've powered it from a benchtop power supply (temporarily), I currently use a linear regulator when running off a battery, I've used a couple step down converters, and for when I actually need 3.3V and 5V power I got a couple boards like this - super cheap and handy. All these are connected to whatever random power supplies I have around, leftover from old devices, salvaged, etc. I have a couple 120VAC -> 5VDC power supplies, but I rarely end up using them.
Maybe I'm misunderstanding, but you generally shouldn't be powering the boards via 5V and 3.3V at the same time (at least with the boards I have). Did that provide an answer to your question, or have I completely missed this one?
Thanks so much, I looked up "ESP32-DevKitC" and found [this one] (https://www.amazon.com/dp/B01N0SB08Q/) for $14. Is that the board you're recommending?
An easier way would be to use a microUSB extension cable: https://www.amazon.com/gp/product/B00W6URQPE
Helloo theere....
i'm usinig these:
https://www.amazon.com/Diymall-Voltage-Sensor-Dc0-25v-Arduino/dp/B00NK4L97Q
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addding 300 to the ADC value gets me back to accurate........
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Because the maximum you can feed into the pin is 3.3v which is 16.5 on the voltage converter........
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12.89 from battery 2.56 into the board......
so a perfect 5 scaling factor....
I was thinking the same, there are a ton of external gate alarms on Amazon you could hack into.
I also found this and the update to ESP32 shouldn't be too complicated, or OP can stay on the 8266
https://www.instructables.com/id/4-WiFi-Door-Alarm-Using-a-ESP8266-IoT/
https://www.instructables.com/id/IoT-Door-Alarm-UPGRADED/
Doesn't it come with a backing? The first photo on the Amazon listing shows one.
https://www.amazon.it/ANGEEK-Memoria-Arduino-Raspberry-microcontroller/dp/B07SBR9NL1/ref=mp_s_a_1_1_sspa?keywords=sd+reader+raspberry&qid=1573540599&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExUDFRSEtTWDFZWjIyJmVuY3J5cHRlZElkPUEwNTk1ODAxOEFRU1RTSjBFU1hZJmVuY3J5cHRlZEFkSWQ9QTA4MzQ0ODEzS01ET1BZWU8xWFI0JndpZGdldE5hbWU9c3BfcGhvbmVfc2VhcmNoX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=
this is sd module. i prefer spi because i have to connect from 2 to 8 sd at this esp
Opto PC817 https://www.amazon.com/gp/product/B00S4YRMB4/
Buy 10 for 7$. They take another voltage and turn the signal into 3.3. I've used them for any projects that require an input.
https://www.amazon.com/gp/product/B0718T232Z/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
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it says Nodemcu on the back
With something little this: DSD TECH USB to TTL Serial Converter CP2102 with 4 PIN Dupont Cable Compatible with Windows 7,8,10,linux,Mac OSX https://www.amazon.com/dp/B072K3Z3TL/ref=cm_sw_r_cp_apa_o2cPBbPY828K8
This is the same ic that is on most esp dev boards.
Do you have a link? Lowest I found is this one for $11, which I may order one of just to confirm it will fit, but that’s still $4-$5 more than Ali.
I read elsewhere in this thread that every esp in your project draws 0,75 amps, correct?
With your usage, 60esps 0.75 amps = 45 total amps .
45 amps 3.3v the esp uses = 148,5 Watts. Adding a little breathing room, you need a power supply that can output 3.3volts with a total output of ~200 watts, like this. I wouldn't trust completely this particular one, it's more of an example to give you an approximation of how I'd go about that.
That has proven to be less than intuitive. Which manual should I be consulting? I've got a "HiLetGo" ESP32S. Nothing came with it pointing to documentation. So I can find scads of docs for the ESP-WROOM-32 chip, but that doesn't tell me anything about the design choices made for the board itself (like which header pins connect to the GPIO pins). The way I eventually figured it out was flipping it over and realizing that they had printed (in very tiny text) the pin assignments on the back of the board. Programming the thing was also a bit confusing, because you have to push a switch labeled "IO0" down when the upload says "Connecting...___..." otherwise it times out. I've got another one that times out, even when you do that.
So, it's not like these little boards are without quirks, especially if you're used to a traditional Arduino. I agree with /u/holytoledo760. It appears the most sensible approach is to figure the thing out on a breadboard. I made the mistake of building a PCB with a bunch of connections before I really understood the thing's quirks. Now I'll have to design a new PCB most likely (unless I get really lucky).