Espwifiscangetapnum is called to get the number of APs that have been found in this scan. Then, it allocates enough entries and calls espwifiscangetaprecords to get the AP records. Please note that the AP records in the Wi-Fi driver will be freed, once espwifiscangetaprecords is called. ESP drive is not found in disk manager and the there is no network path for the drive. My ESP drive is of size 96.0 MB and 47.4 MB is occupied by some data.this drive is not opening. Saturday, October 29, 2016 5:40 AM. Feather is the new development board from Adafruit, and like it's namesake it is thin, light, and lets you fly! We designed Feather to be a new standard for portable microcontroller cores. This is the Adafruit Feather HUZZAH ESP8266 - our take on an 'all-in-one' ESP8226 WiFi development boardwith built in USB and battery charging. Its an ESP8266 WiFi module with all the extras you need, ready. The Espressif SDK is a bundle of utilities and device-level APIs for our ESP8266, ESP32 and ESP32-S2 series of wireless chipsets. Optimized precompiled libraries and ready-to-compile driver libraries reduce time to market, while ensuring freedom of customization. Our SDKs compile with the free-to-use Xtensa GCC toolchain. From then on program the firmware starting at address 0x1000: esptool.py -chip esp32 -port /dev/ttyUSB0 -baud 460800 writeflash -z 0x1000 esp5-v1.10.bin Firmware is provided using either ESP-IDF v3.x or v4.x. If in doubt use v3.x. Firmware with ESP-IDF v3.x. Firmware built with ESP-IDF v3.x, with support for BLE, LAN and PPP.
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- 2What hardware do i need?
- 3Software
- 5Connecting to the computer for flashing
Basics: How to connect and flash the ESP8266
WARNING: Some devices as the 'Sonoff basic' have their own power supply on board.
DO NOT USE THIS POWER SUPPLY FOR FLASHING!
Mains Voltage is dangerous for you and your computer! Always use a separate power supply.
You obviously need a device with ESP8266.This can be a device with built-in ESP like the 'Sonoff basic' switch, or a ESP8266 on a breadboard.
You may also use a nodeMCU or a WeMOS D1 mini.
The nodeMCU and the WeMOS D1 mini are recommended for newcomers. They are the most easy to handle version of ESP8266
If you use a nodeMCU or a WeMOS, you just need an USB cable, that's all
For other devices you need a power supply with 3.3Vor a power supply with higher voltage and a voltage regulator down to 3.3V.
DO NOT USE MORE THEN 3.3V AT THE ESP!
It will kill the chip.
Further you need a USB to TTL converter (UART) that supports 3.3V.
Again: Do NOT use 5V devices!
Last but not least you need some cables with plugs ('DuPont cables').
Depending on your ESP you may need different cables such asmale/male, male/female or female/female.
It's recommended to get an assorted bunch of such cables asyou may need them to connect sensors, actuators and such for testing. Buy cables with many different colours. It helps....
A word about power supplies
Do yourself a big favour: Avoid cheap power supplies!
We have seen some strange behaviour from cheap power supplies.If you put a voltmeter on these it shows the correct voltage.Everything looks nice.
If you use an oscilloscope you may get some nasty surprises.Oscillating voltage, ripples.....
Use a high quality power supply like MeanWell or similiar.It should have at least a current of 1 ampere.
It is not recommended to use the 3.3V supplied by the UART board.
The voltage regulators on these boards usually are far too limited to feed the ESP.
Recommended UART (USB to TTL converter)
Recommended types are those with a CH340G or a CP2xxx chip (CP2102 pictured above).
If you get an UART with settable 5V/3.3V set it to 3.3V.With some UART cables a wire has to be soldered accordingly.
The FTDI232 might be one of the most faked chips at all. The genuinemanufacturer took measurements against these fakes.
They will not work correctly at least with Windows. Everything looks fine, apparently flashing worked well.
What Is Esp Driver
But the code you flashed into the ESP is corrupted!
Kodak Esp Driver
A genuine FTDI232 UART will cost around 15€ and up!Avoid these cheap 2€ FTDI's you may find on eBay or AliExpress!
You can use several different softwares for flashing the ESP.It's recommended to use the flasher that is delivered with theESP Easy software (FlashESP8266.exe).
It needs no settings and works just out of the box.
During testing it's useful to see what the ESP is doing.
ESP Easy is programmed to give information via theserial port, the same port you use for flashing.
For monitoring you may use the Arduino IDE, a simpleterminal software like putty or a specialized programlike ESPlorer (www.esplorer.ru).
These programs support a lot of devices so you have to set some parameters:
Firmware
Of course you need the ESP Easy firmware.You will have to download the .zip file from GitHub.Unpack the .zip to a folder of your choice. Also unpack the two EXE files
Those who want to compile their own version of ESP Easy should take a look at the wiki to find HowTo's.
Those using the nodeMCU or WeMOS D1 mini may skip this paragraph.Everything is ready to use on these boards.
The ESP usually starts up from the internal flash that contains the firmware.This is called 'run mode', it's the all days mode for using ESPEasy and the ESP chip.
For flashing the ESP it must be set into 'flash mode'.Said simply this starts another program at bootup, reading the serial portand writing the data into flash memory.
The ESP has four inputs that manage the startup behaviour.These setting are necessary to flash the chip!
The GPIO15 pin should always be set to 'low'. Use a 10KOhm resistor between GPIO15 and ground.
GPIO2 should be pulled to 'high'.Use a 10KOhm resistor between GPIO2 and 3.3V (Vcc).
The GPIO0 setting now decides between run mode and flash mode.Connect a 10 KOhm resistor between 3.3V (Vcc) and GPIO0.This sets the ESP8266 into run mode.
Now you may connect the GPIO0 directly to ground for flashing.
The fourth is the 'reset' pin. It should be on 'high', soput a 10 KOhm resistor between Vcc and reset pin.
For all ESP's besides nodeMCU and WeMOS there is a 'CH-PG' pin.It's an 'enable' pin you may use to switch off the whole ESP-Chip.Put a 10KOhm resistor between CH_PG and Vcc to keep the ESP running at all.
Devices with an embedded ESP-Chip (Sonoff basic or 4ch for example) will havethese resistors on board. Just GPIO0 has to be set to ground with a jumperbridge or via a pushbutton.
Get your computer ready
Install the serial monitoring program of your choice.Install the drivers for your UART (USB->TTL) converter.
Plug in the UART and open the device manager. Under the'Ports (COM & LPT)' you will notice an additional COM-Port,usually COM3 or higher.
Note the number, you may need it.
Connecting UART to ESP
Again, those using the nodeMCU or WeMOS D1 mini may skip this paragraph.
Remember the settings mentioned under some basics about flashing above.Now it depends a lot on what ESP you use.
The small ESP-01 has some connections already on board (GPIO15)You have to connect GPIO2 and Reset to Vcc and GPIO0 to ground asdescribed above.
If you use the bigger ESP's (ESP07, 07s, 12, 12e, 12f) you have to take care of all connections being properly made.
Now connect the UART:
Do not switch on the power supply yet!
Connect the power supply to Vcc (3.3V) and Gnd.If using higher voltage power supplies, use a voltage regulator!
Watch out not to swap the leads accidentally - it will kill the ESP.
Double check your cabling! All connections made properly?Check against section above.Check it again.
Failures often result from cabling faults.
Flashing the nodeMCU / WeMOS D1 mini
Just connect an USB cable to your board - that's all (since the units have onboard UART controllers).The flashing program will do the rest for you.
Start the flash program (FlashESP8266.exe) from the ESPEasy .zip file.
Select the COM-port you have noted above. In most cases it will show the correct port already.
Select the .bin file you want to flash.
If you're using a nodeMCU or WeMos D1 it will do the job for you.
Just click the flash button.
In case you are flashing a bare ESP click the flash button and power up immediately afterwards.
A black windows (a command console) opens and shows what is going on.Shortly rows of points appear point by point.
As soon as the flash program confirms that it is done you may close itand go back to the monitoring program.
On a fresh ESP it starts clearing some areas of the flash.Wait until it is done.
Reset or power off / on your nodeMCU or WeMOS.
Wait for about two minutes: ESPEasy 2.x first formats it's internal file system,
it takes a while to get this ready.
Flashing other ESP devices
You should have done all connections.Do not power up the ESP now!
...Follow the same flash procedure as above using the FlashESP8266.exe software....
Disconnect GPIO0 from ground, the resistor to Vcc should remain.Reset or power off / on your nodeMCU or WeMOS.It should be ready to use now.
If everything has gone right you have a useable ESP Easy device now.
As no parameters are set it will go to 'AP mode' for configuration.
Use your computer, tablet or smartphone and search a WiFi network named 'ESP_Easy_0'.
Connect to ESP_Easy_0 using the password 'configesp' (without ').
Open your internet browser and type 192.168.4.1 as internet addressinto the browser. The WiFi setup of the ESP Easy opens.
You can choose your WiFi network now. Select the SSID and enter yourpassphrase, click connect.
It will take 20 seconds until a result is shown. If you typed everything correctly it will show a message that it is connected to the network andit shows the IP address.
Note the IP address!
Connect your computer or whatever back to your usual network.Open a browser and type the ip address into the browser.
You should see the config pages of ESPEasy now.
Flashing can go wrong by a lot of reasons.In many cases cabling faults are the reason.
If the flashing program says it can't find the ESP, try to swapthe Tx and Rx cables at the ESP. Sadly some manufacturers are not too consequent with naming.....
Didn't help?
Check all of your cabling. All GPIO's set accordingly?Are all cables OK? If you got cheap connector cablesthey might have some contacting problems.A digital multimeter is a helpfull device for such cases.You might consider to get one for future use. Don't chose the cheapest one.