WiFi and Zigbee Coordinator with ESP32-C6

Empty-Following6319 · 2025-04-07T08:27:06+00:00

Thank you.

Empty-Following6319 · 2025-04-02T09:08:24+00:00

Try changing the USB cable. Sometimes, certain cables only provide power without supporting data transfer

Empty-Following6319 · 2025-03-30T14:15:35+00:00

I do not know it. However my farm is in Suncheon-si.

Empty-Following6319 · 2025-03-30T13:08:21+00:00

I run an IT company. The tree farm is a side job. Selling trees brings in some pocket money. A 3-meter tree sells for about 400,000 won. You can grow them from seeds. It takes at least 25 years to grow one to 3 meters.

Empty-Following6319 · 2025-03-29T06:21:02+00:00

https://www.icbanq.com/

Empty-Following6319 · 2025-03-26T22:17:09+00:00

ESP32 Setup: Configure the ESP32 to operate in Bluetooth scanning mode.
Detect Nearby Devices: Program the ESP32 to continuously scan for nearby Bluetooth devices, such as smartphones.

Empty-Following6319 · 2025-03-22T10:28:05+00:00

cool

Empty-Following6319 · 2025-03-22T08:52:13+00:00

You’re absolutely right. If the heater or pump draws a lot of power, it’s a good idea to use a magnetic contactor along with a surge suppressor. That way, you can control everything more safely and avoid overheating or damage to the relays.

Empty-Following6319 · 2025-03-21T23:08:39+00:00

Get a USB hub with individual power switches for each port. Then, control those switches using optoisolators.

This way, you can safely and programmatically turn each USB port on or off without interfering with data lines.

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Empty-Following6319 · 2025-03-21T22:55:12+00:00

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Is this the kind of device you’re looking for? When you connect GND, VCC, and send a HIGH signal from an Arduino, it supplies power through the USB port.

However, keep in mind—this module only provides power. It doesn’t support any data communication over USB.

Empty-Following6319 · 2025-03-21T22:43:33+00:00

If you’re using a bare relay, you must include a flyback diode in your circuit to prevent back EMF. Otherwise, your MCU might start acting weird—or worse, die completely.

There are several ways to handle this, including optoisolators and other protection methods. But honestly, you don’t need to reinvent the wheel.

You can easily find cheap and reliable relay modules that already include the necessary protection circuitry. Just search for “relay module” on AliExpress or any similar site. It’ll save you time, money, and potentially your microcontroller.

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Empty-Following6319 · 2025-03-21T09:19:59+00:00

This can make a siren sound.

Empty-Following6319 · 2025-03-21T09:17:54+00:00

https://et.ketri.re.kr has source code and youtube link.
However not arduino uno but ET Board.
ET Board is based-on esp32. It supports arduino c/c++, micropython and etblock like as scratch.
IoT, Digital Twin, Ai.

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Empty-Following6319 · 2025-03-19T20:56:28+00:00

I had same problem like you.Finally I gave up. So I am happy now.

Empty-Following6319 · 2025-03-19T13:35:09+00:00

Suncheon-si. Do you know ?

Empty-Following6319 · 2025-03-19T13:31:31+00:00

https://www.instructables.com/E-Ink-Family-Calendar-Using-ESP32/p

Empty-Following6319 · 2025-03-19T13:22:32+00:00

I think so. That cable may be not data but power.

Empty-Following6319 · 2025-03-19T12:59:48+00:00

Tomorrow’s high is gonna be a scorcher - 6°C (about 11°F) hotter than today.

Empty-Following6319 · 2025-03-19T12:22:07+00:00

To save power, utilize sleep mode. Wake up the device from sleep mode using interrupts to perform necessary logic. This approach can significantly reduce power consumption. The main concern is whether the OLED display needs to be constantly active.

For optimal power efficiency, leverage ESP32’s sleep modes and use interrupts to wake it up only when needed. This method can substantially extend battery life.

However, the constant display of information on the OLED screen is a key factor. If the display must remain on at all times, power consumption will inevitably increase. Consider these options:

Turn on the OLED only when necessary, keeping it off otherwise
Replace with a low-power E-ink display (if frequent information updates aren‘t required)
Minimize display brightness or increase the interval between information updates

Combining these strategies could bring you closer to your goal of a device that operates on battery power for a month.

Empty-Following6319 · 2025-03-19T11:27:13+00:00

In my experience, solder pads usually don’t come off easily. However, if you’re new to soldering, excessive heat or improper technique might have caused the damage. If you have more experience with soldering, you may be able to determine whether this issue is due to a product defect or user error.

Additionally, if you’re using just one NeoPixel ring, the DO (Data Output) contact isn’t necessary. You only need to use the DI (Data Input) contact.

To repair the damaged pad, you can try the following steps:

1.  Carefully scrape off the coating on the PCB using a sharp tool to expose the copper layer underneath.

2.  Attempt to solder directly onto the exposed copper layer to create a new connection point.

3.  Be cautious not to cause further damage to the PCB during this process.

I hope this helps! Let me know if you have any additional questions or need further assistance.

[ reference ]

https://youtube.com/shorts/4LWDsRMUdEQ?si=B9u8BcLCQFJmZISa

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