To use Update date to now firmware, at commands V1.5: download at commands 1.5V here, if you use 1MB flash for esp-01s or 4MB for esp-12F, etc, etc. can use the combined bin. https://github.com/Edragon/esp_firmware/tree/master/AT Also at commands instruction inside, has GPIO function, need this three. AT+SYSIOSETCFG=13,3,1 AT+SYSGPIODIR=13,1 AT+SYSGPIOWRITE=13,1 --- The following content is obsolete, not necessary --- ...
First what you receive firmware version, mostly could be: 00160901, this version number actually are two parts, 0016 is the SDK version, and 0901 is the AT version. Let us first update to a Cloud update supported version 00170901, please find the tool here: and run the tool, select the bin...
In the last post, the problem finally concluded is the circuit in the socket can not provide enough current to support the bluetooth module, according to the equation, it is probably only 22mA, so these items are bought to replace the original parts: 0.33uf safety x2 capacitor to 1uf cap. 1M discharge...
This test is based on our basic CC1101 board, it is the basic version, not the highest signal strength, nor using the on-board MCU to simply the communication to serial port. So this board works at SPI originally. First what is LQI and RSSI, we copied an answer from this
When you finished the design and manufacturing of your board, it is important to run a test to see if everything is working as expect, for many simple boards, this is done by human eyes check, but sometimes for more complex board, it is better to run a fully functioning...
We are working on some boards that can directly communicate with PC these days, so here comes with three most typical boards: USBASP: A wonderful programmer tool we have, do most of programming work, it also using V-USB interface. Atmega32u4 small breakout board: Similar to arduino leonardo and arduino micro, plug the...
In the weekend, we didn't work on the new products for Electrodragon too much, but just tried some fun with raspberry pi, a few main work have done with raspberry pi and it is really pleasant for me: Set up the VNC view on startup, the old methods to let it...
As you may know, SIM900 is a quad band modem being able to operate in 850,900,1800,1900 MHz bands, while SIM900A is a dual band GSM modem being able to operate only in 900,1800 MHz bands. You can see the supported countries in the list below, however, the fastest way is...
You may have tried our High power LEDs, from 1W to 100W version, the heat increases sharply when the watts goes up. Here we found a demo video of the 100W version, you can see how much the heat dissipation need for the led.
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