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I have about 200 nodes of ESP-12e(a wifi module based on esp8266) and coding in arduino IDE. I want to connect them to a single wifi modem. Each node works about 3 second and sleeps for about 5 minutes. So probably the actual connected nodes is not more than 15-20 nodes.
A probable solution is...
Ultra Sonic cannot work behind a plastic box. So, i need a sensor that be able to detect material: detect metal of car's body and not deceiving with my plastic box.
and about direct sunlight problem => that is crucial. because my application is on-street
Hi, i'm designing a smart parking and want to use magnetic field sensor on the ground (under the car) to detect the parking free/busy status.
I prefer magnetic field sensor because ultrasonic need straight line of sight and cannot work within the box. And infrared sensor have problem in sun...
I don't understand what you mean by this question: What commands do you use?
The ESP8266 is server and PC is client. Now, in this test code, the client is Packet Sender application. After i connect my PC to the Node MCU access point(i configured it so) and then connect to the 192.168.1.1 that is...
Hi every One
I'm using NodeMCU board to communicate a laptop through WiFi. Basic communication is ok with a code like this:
void loop (){
WiFiClient client = server.available();
if (client) {
while (client.connected()){
client.println(Data_mem[0])...
I Found that ESP-12F has an SPI interface.
So, my question is: Can i Configure and send/receive data only trough SPI pins of ESP-12F(and leave unconnected UART Tx/Rx pins)?
Anyone works with it?
Hi, I want to Use a WI-FI module to connect my FPGA board to an android phone. I need 2 MByte per second data rate. So, can anyone offer me a proper wi-fi module? Unfortunately, most of them have serial interface and low data rate(Like this)
*In addition, Consider the cost!
Yes, I want to nterface HC05 with PC Bluetooth transmitte.
And about Transfer rate, if 46 kByte/s is Maximum transfer rate, so what means 3Mbps rate in datasheet?
Hi every one,
I want to use HC05 bluetooth module with my FPGA board and transfer and receive data with my PC application.
Data rate of Board-to-PC is about 25K Byte per second and data rate of PC-to-Board is about 1 K Byte per second.
So, Can I actually access this range with HC05?
I'm...
Hi, I'm using a VHDL code downloaded from GitHub to Drive a UART communication.
Here
I want to Use 250000 Baud Rate. So according to the top of VHDL file explanation, while my I_clk is 50MHz, I set:
I_clk_baud_count <= X"00C8";--means 200
it seems that the tx_clk should be 40us, but it is...
Hi every one,
I'm designing a simple Oscilloscope. For Cost considerations, i prefer to use an ARM-Based micro-controller with an internal ADC. I need a single channel ADC with 48 MSPS sample frequency. Is there a proper ARM-Based micro-controller to satisfy this? In other word, is there an...
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