GSM Remote Control Module


Posted on Feb 5, 2014

This GSM Mobile is used for our Remote Control (for example Gate Control, Temperature Control . ). We use the word module` because, unlike what we did in ourremote control projects, this time around the mobile phone is not mounted on a printed board, but rather on a small auxiliary board which is then inserted in a connector specifically created


GSM Remote Control Module
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on the main printed board; though this alternative may seem rather complex at first blush, it does have two advantages: the first is that if the GSM module should stop working, and you should not be able to find the same model, you can simply replace it with a different module without having to replace the entire circuit board. All you need to do is create a small board compatible with your unit, with the pin strips arranged as required by the circuit board. The second advantage is that the module`s printed board is double-faced and can thus host a GSM module on one face and a different one on the other. This provides the option of choosing between two different mobile phones according to one`s needs. Let us begin by describing the module hosting the mobile phone: it is a printed circuit board measuring about 1. 75G—1. 95 inches, with two pin strips (a 3-pin one and a 16-pin one) used to connect with the circuit board of the remote control device; the first pin strip carries digital power (both positive and negative), in addition to the ignition control line (PWR), while the second strip contains all the communication signals and lines to and from the GSM module, as well as the analogical section of the phones (AGND, contact 11). This pinout remains unchanged regardless of which of the two modules (SIM900 from SIMCom or M10 from Quectel) is in use. Let`s now take a look at the electrical scheme, which displays the...




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