Mobile phone production of remote home appliance remote control circuit diagram

Nowadays, mobile phones are very common in urban households . Almost everyone has one. Moreover, new models are coming out with each passing day, and mobile phones are updated very quickly. It is a pity to throw away the old mobile phones that have been eliminated by the family. Can old mobile phones be transformed into other usable household appliances? The answer is yes. At present, both China Unicom and China Mobile Communications Company have launched mass economy cards. With this card, all incoming calls are free of charge for the called mobile phone and landline charges are also very favorable. We will use this card as the media medium for the above device to complete the production. The author has two obsolete Ericsson GH398 and Waveguide RC928 mobile phones at home. The above two devices have been modified respectively, and the results are good after use.

Remote home appliance remote control

See Figure 1 for the circuit. As can be seen from Figure 1, when the calling mobile phone 1 or the office phone dials the called mobile phone 2, the called mobile phone rings, and we take its ringing signal as the starting signal of this circuit. This ringing signal can be taken from points A and B at both ends of the handset speaker SP of the called mobile phone, or from points C and D at both ends of the power supply of the vibration motor M in the mobile phone . This article is taken from both ends of the handset speaker. When the called mobile phone rings, it is filtered by the diode V2 and the rectifier capacitor C2 and drives the thyristor V to conduct. The relay J is powered on and its pair of normally open contacts J1 are closed to achieve self-retention. At the same time, the other pair of normally open contacts J2 is closed, and the 220V power supply of the AC contactor coil is connected. The contactor K is electrically closed, and its normally open contact K1 is closed to achieve self-holding. At the same time, the other pair of normally open contacts K2 is closed. Turn on the power supply of household appliance F2 to realize the operation of the remote-controlled household appliance. The purpose of adding a contactor is to remotely control high-power home appliances. Such as electric heaters, rice cookers, air conditioners, etc. These appliances can be turned on remotely 15 minutes before get off work and can be used after returning home, saving lunch break time. If the remote control is a low-power home appliance, such as a lamp, etc., there is no need to install an AC contactor, and you can directly use the relay normally open contact J2 of this circuit. If you want to cut off the power of the remote-controlled home appliance, just press the stop button of this circuit and the TA circuit can be reset.

Because this circuit takes the ringing signal of the mobile phone, as long as the called mobile phone rings for a few seconds, it can trigger the conduction of the thyristor V. At this time, the calling mobile phone can be turned off and stop calling. The called mobile phone will not answer the call. , so both the calling and called mobile phones are not charged. The power supply of this circuit can be taken from the battery E in the mobile phone, or the mobile phone charger can be used as the power supply. If a mobile phone battery is used as the circuit power supply, the battery voltage should be 6V, because the circuit relay is 6V, otherwise a charger should be used as the power supply .