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Recent content by boleft

  1. B

    Using thermopile sensor with uC ?

    ad594 only used for J type, ad595 only used for K type
  2. B

    Thermocouple type "T" circuit

    thermocouple conditioners circuit designs you can use 0.5V as K type "GND"
  3. B

    Thermocuple conditioner

    maybe this can help you: h__p://www.omega.com/temperature/Z/zsection.asp
  4. B

    linearization algorithms help needed

    I think if range of temperature is large(eg. -200~1300C), it is not fit use linearization.
  5. B

    Analog Design : Some things to remember

    where can see more info about these???
  6. B

    Looking for C code for modbus rtu

    modbus for rabbit #define READ_COIL 01 #define READ_DI 02 #define READ_HLD_REG 03 #define READ_AI 04 #define SET_COIL 05 #define SET_HLD_REG 06 #define READ_FIFO 24 #define PROTOCOL_EXCEPTION 0x81 #define PROTOCOL_ERR 1 #define FRM_ERR 2 //unsigned char...
  7. B

    Help me develop Modbus protocol using RS485 based BUS

    Designing RS-485 bus you can study by h**p://www.modbus.org/modbus/standMbusLibrary.nsf/fa_libsearch?OpenForm#
  8. B

    RS232 to Rs485 Circuit, PCB

    rs232 to rs485 circuit I will design usb to rs485, do you know any SCHEMATICS? ths!
  9. B

    RS232 to Rs485 Circuit, PCB

    rs232 rs485 converter schematic do you know send data control & RTS control?
  10. B

    Current measurement using MSP430xxxx micros

    reset and unallow all module after reset stop all module,ie. TA and TB, you will find the consume smaller. because the number of 135/149's module more than 1121. note: must stop module with soft
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