Modifications

== Autres breakouts ==

== Autres breakouts ==

We scattered a few other breakouts around the board.

Il y a encore d'autre signaux disponibles sur la carte.

* Buzzer and PWM (Top right) - These are tied to the PWM output of the module! The PWM capability is quite nice, it can set any frequency and duty cycle. The PWM pin is directly output from the module and is 0-2.8Vpp. The Buzzer output has a NPN drive transistor so it can run a small vibration motor. Bz+ is the VBat voltage, Bz- is toggled on and off to ground.

* '''Buzzer''' et '''PWM''' (en haut à droite) - ces sorties sont branchés sur les sorties PWM du module! Les possibilités PWM est vraiment cool, vous pouvez fixer la fréquence et le cycle utile (''duty cycle''). La broche PWM est branchée directement sur une sortie du module et produit un signal 0-2.8Vpp. La sortie Buzzer est pilotée par un transistor NPN ce qui permet de contrôler un petit moteur à vibration. Bz+ produit la tension VBat, Bz- est "branché"/"débranché" de la masse.

* '''ADC''' (left middle) - the SIM800 has an ADC that can read 0-2.8VDC from this pin, referenced to ground. It also has an internal battery ADC so you can use this for a sensor or something. You can query the voltage from the UART. 2.8V max, people!

* '''ADC''' (left middle) - the SIM800 has an ADC that can read 0-2.8VDC from this pin, referenced to ground. It also has an internal battery ADC so you can use this for a sensor or something. You can query the voltage from the UART. 2.8V max, people!

* '''5V''' (left middle) - this is the USB 5V from the microUSB connector when its in and powered. Good if you need to know when the microUSB is plugged in and/or want to recharge the battery from an external plug.

* '''5V''' (left middle) - this is the USB 5V from the microUSB connector when its in and powered. Good if you need to know when the microUSB is plugged in and/or want to recharge the battery from an external plug.