Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Other Electrical Equipment & Supplies
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Save on Other Electrical Equipment & Supplies
If you want to use it with the Arduino IDE, have in mind that it's not so easy to install. On the other hand, there many tutorials to help you with the precess. You have to download extra software (Git and maybe Python) to get the Arduino IDE to show the ESP-32s boards, compile and flash your sketches. If you manage to complete the installation (it took me a while, that's why i write about it) then it works like a charm. Sketch compiles and uploads really fast. And the board works great. I tested it with "blink" sketch as well as with "WifiServer" sketch with no problems at all. Great product. Nice price. Great features. What else do you need??
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To enable automatic programming, a 0.1uF capacitor is required between EN and GND. (If you do not I had to hold down IO0 button to program) Other problem . "Brownout detector was triggered" This resets the Dev board over and over again. This code hides the Brownout issue and Dev board seems to work: //Code start #include "soc/soc.h" #include "soc/rtc_cntl_reg.h" void setup(){ WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector //Code end
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Testing this development board as a plug-in replacement for a more expensive one on Amazon. This one isn't finished as well, and has cheaper silkscreening on the pin side, but that did not matter too much. Also, no schematic (the Amazon one has the schematic). There are several Internet PDFs from hobbyists who have nice overlays to work with the device with a breadboard, since you cannot see the silk-screening. Initially, I could not program the device with my Linux espressif toolchain, as the device was in constant reset (SPI_FAST_FLASH_BOOT) after a program was downloaded into it. After a while, I decided to run a simple "blinker" sketch from the Arduino environment (NodeMCU32S) and was successful, as was a more complex sketch that employed the onboard http server. No issues. So I went back to my espressif environment , and this time, the device "took the programming" and worked just like the Amazon one. I'm using it with a Passive IR sensor, a few LEDs and a high torque servo. These are great boards, and I plan to buy a couple more of these as my home automation experimental projectsRead full review
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Bought this to build a custom weather station Pros: + Small footprint, can fit in a permanent shadow of my balcony railing, to get accurate measurements + Has deep sleep mode perfect to conserve battery + Has wi-fi to attach to home network and report the results + Powerful enough to serve the results via HTTP + Has enough on-board memory to provide nice UI and detailed week or month-long weather log + Has enough peripheral connections to allow for temperature, humidity, pressure and air pollution sensors + internally runs on 3.3v, compatible with most sensors without level adjustment logic Cons: - A bit of an overkill for just a weather station - I might add more sensors to it because I can.
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I bought this to replace an arduino since I ran up against the memory limit. I was really pleased with how easily it's incorporated into the arduino IDE, and how similar it is. In the end it's much faster than the arduino, has much more memory, and has built-in bluetooth (both BLE and classic) and wifi. The only downside is a higher current draw. But I'm completely sold on these things.
Verified purchase: Yes | Condition: New