![tv eeprom programmer schematic diagram tv eeprom programmer schematic diagram](http://8bs.com/submit/eprog/circuit.png)
- #Tv eeprom programmer schematic diagram software
- #Tv eeprom programmer schematic diagram code
- #Tv eeprom programmer schematic diagram plus
- #Tv eeprom programmer schematic diagram tv
File number 050233-11.zip may be found by clicking on Magazine → 2006 → July/August.
#Tv eeprom programmer schematic diagram code
The assembly code file for the PIC used in this project is available as a free download from the Elektor Electronics website. In programming mode, the 1- second blink means the IR code was saved in the microcontroller EEPROM. In working mode a fast-blinking LED (D1) means reception of IR codes with no associated function 1-second blink means programmed IR code was received and corresponding action was performed. Using Table 2, configure the other switches to select the desired relay mode. Flip OFF switch #5 to select working mode. Using Table 1, set the other switches as required to save desired IR codes in EEPROM. Flip ON switch #5 (switch connected to RA4/TOCK1) to enable programming mode. Switch the circuit on with all DIP switches set to OFF. The Easy Home Remote Control is configured as follows. If you’re a keen energy saver, it is also possible to program an IR code to turn off all the relays (and save 5 V♱40 mA = 0.7 watts per relay).
#Tv eeprom programmer schematic diagram tv
For example, your TV remote may be able to control five systems: TV (default), VCR, DVD, AMP, SAT. It allows four different RC5 codes to be saved and used to control the four outputs.
#Tv eeprom programmer schematic diagram software
The software developed for the project is stored in the PIC microcontroller. Many articles on RC5 have appeared in this magazine.
![tv eeprom programmer schematic diagram tv eeprom programmer schematic diagram](https://www.electronicsforu.com/wp-contents/uploads/2016/03/E2C_FIG-1.jpg)
Note that in RC5 speak a logic ‘1’ is a transition from 0 V to Vcc, and logic ‘0’ is a transition from Vcc to 0 V, where the period of one bit is 1.7778 ms. The last six bits represent the sent command. The next five bits are used to identify de system which the message is sent. The third bit is the flip bit, this bit indicates when a key is pressed repeatedly. The first two bits, always at ‘1’, are used to start the frame. The protocol consists in a frame of 14 bits. The circuit is designed to respond to infrared commands coded to the Philips RC5 protocol.
#Tv eeprom programmer schematic diagram plus
The circuit should be powered by a 5-V regulated supply capable of providing enough current for the four relay coils (approximately 140 mA per relay) plus a few mA for microcontroller, IR sensor and LED. Components C1, C2 and X1 generate the microcontroller clock signal while C3 helps to keep the supply voltage as clean as possible. It is also used to control multifunction indicator LED D1 on port line RB6. The lower nibble (set of 4 bits) of port B is used to control the output relays via 1-k resistors and BC547 transistors. Looking at the circuit, the DIP switch block and the associated resistor array connected to microcontroller port A are used to program the IR codes and to select the operation mode for all the outputs (described further on).The IR sensor is connected to port line RB7 on the PIC. To control such devices as mentioned above, four relays are used, working together with lamp switches in a two way configuration. The ‘F84 was chosen mainly because of its internal EEPROM, which is necessary to store the user-programmable infrared codes. The circuit designed for maximum indolence in front of the telly is built around the PIC16F84.
![tv eeprom programmer schematic diagram tv eeprom programmer schematic diagram](https://www.kazmielecom.com/wp-content/uploads/2019/01/programmer-short.jpg)
The idea is to control all these devices, and more, with the TV remote control. Many living rooms these days have a double head-up ceiling light, a floor lamp and an electric window/curtain control. Happens to everyone! You’re comfortably installed on your sofa watching TV and then all of a sudden you need to get up to turn the lights on or off, or to draw the curtains.