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Recent content by dhruv_electro

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    Dual Power Source Selection using PMOS.

    Yes I am from India. I buy from Mouser, Element14 or local electronics distributors. Is it possible that this problem occurs due to inability of Voltage source to supply required current or load drawing more current? or Is it a problem of MOSFET?:
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    Dual Power Source Selection using PMOS.

    Klaus, I do not mean that. In any way if I sound like if "I want you to do my job" then I am sorry. I am only asking for the part number because I am not sure how to pick the right one and there are so many of them. As someone suggested, I have also ordered NSS60600 and the power switches like...
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    Dual Power Source Selection using PMOS.

    I will try this two MOSFET in series. I am using FDD4141. Can you suggest any cheaper MOSFET instead of this?
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    Dual Power Source Selection using PMOS.

    I think in this application, I need to have Voltage, Current, On resistance and wattage rating of the component. I have only one PMOS FDD4141 that is why I have tried it. And it does have very low on resistance (10-15 mOhm) and 12A Current. What other parameter should I consider for this...
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    Dual Power Source Selection using PMOS.

    Thank you for the reply. Can you give me some example for switches / schottky diode / PNP type transistor? I want to have upto 3A current.
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    Dual Power Source Selection using PMOS.

    I want to build a circuit using which I can select the output power source using Arduino GPIO. I am trying this one: In this circuit I am trying to switch a power supply to some load. Selection is between 14.8V external Power supply and 5V (Arduino's Power Supply). I want output to be...
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    [SOLVED] {ESP8266} Can not transmit zero with Serial.write if using Serial.swap

    I think I have given the reference of **broken link removed**. But let me put it here also Again thanks for the reply.
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    [SOLVED] {ESP8266} Can not transmit zero with Serial.write if using Serial.swap

    Thanks for the interest, yes this goes to **broken link removed** void uart_swap(uart_t* uart, int tx_pin) { if(uart == NULL) { return; } switch(uart->uart_nr) { case UART0: if(((uart->tx_pin == 1 || uart->tx_pin == 2) && uart->tx_enabled) || (uart->rx_pin == 3...
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    [SOLVED] {ESP8266} Can not transmit zero with Serial.write if using Serial.swap

    I am using Arduino IDE to program ESP-12E. Here is Arduino core for ESP8266.
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    [SOLVED] {ESP8266} Can not transmit zero with Serial.write if using Serial.swap

    I think you are confused with my question. I am not sending Null-terminated string. I am sending bytes 0x00 0x01 0x02 (uint8_t) with UART. And as byte will have value from (0 to 255) or (0x00 to 0xFF). It should send 0x00, which it is sending in first case i.e. sketch 1 successfully. It does not...
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    [SOLVED] {ESP8266} Can not transmit zero with Serial.write if using Serial.swap

    Hardware Hardware: ESP-12E Core Version: 2.3.0 Settings in IDE Module: Generic ESP8266 Module (ESP-12E) Flash Size: 4MB/1MB CPU Frequency: 80Mhz Flash Mode: qio Flash Frequency: 80Mhz Upload Using: SERIAL Reset Method: nodemcu System Setup I am using ESP-12E, a separate power supply and...
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    ESP8266 web communication problem

    Community will be glad that it has helped you. Please share your result / changes / suggestion here, so it will provide the reference for future. I am interested in your changes, may be it can solve many of my problem. If you have got your answer, please mark the thread as solved.
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    ESP8266 web communication problem

    Hi Ranbeer, If you are doing according to what you have mention, I think you are doing fine. Even if you are not getting the results then you need to check it step by step. If you are ok with that then please follow this. I advice you to post this on ESP community forum "here" as well, so no...
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    ESP8266 web communication problem

    In web browser if you type IP address without the port number, it will by default try asking server for the connection on the port number 80. Here in your ESP module when you try AT command : AT+CIPSERVER=1,1234; You are actually opening server on port number 1234. So from web browser you need...

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