LoRa remote control SX1278 radio module and Arduino ATmega32u4 microcontroller

PRODUCER: Future Electronics

REFERENCE: FT1250M

EAN CODE:

Handheld transmitter based on the LoRa SX1278 radio module and managed by the ATmega32u4 microcontroller. Suitable for use in combination with the LoRa shield (see related products), it allows you to create long-range radio commands. A micro USB socket is available for programming via the Arduino IDE. 

MANUAL AND LIBRARIES Handheld transmitter based on the LoRa SX1278 radio module and managed by the ATmega32u4 microcontroller. Suitable for use in combination with the LoRa shield (see related products), it allows you to create long-range radio commands. A micro USB socket is available for programming via the Arduino IDE. The transmitter is powered by a 12V type A23 battery with an average consumption of about 20mA during activity. The remote control is supplied assembled, tested and complete with container. Alternative use of the remote control hardware If we connect a voltage-free contact in parallel to the button, such as a reed contact for doors and windows (that of burglar alarms, ed), we will create an efficient wireless anti-intrusion alarm sensor. For example by connecting it to a door we will be able to receive on the server, even very distant, the signaling of the opening which can be used as an alarm or as an event recording. In fact, we remind you that the LoRa shield can be mounted on RandA (our Raspberry Pi shield that Integra the Arduino UNO core) where the Raspberry Pi processor can act as a sophisticated server, possibly connected to the Internet. The miniaturization of the remote control and its self-power supply predispose it to be placed wherever a mechanically activated sensor is needed. If we then add a small circuit that creates a very low consumption timer (of a few nanoamperes), we could electronically operate the button, for example through a MOS transistor that acts as a switch. In this case we could periodically send to the server an analog value read on pin A2 or a digital value on pin D8. For this alternative use, a container of dimensions comparable to that for the remote control could be used, such as the G1013 (with some adaptations), in case the button window is not desired. These alternative uses of the remote control are uses that rely on the momentary activation of the circuit which has a power supplied by a small non-rechargeable battery. But a further elaboration of the remote control circuit is already being studied. A battery charger for 3.7 V LiPo batteries will be added to this new card, whose dimensions are not too distant from that of the remote control. The result will be to have a card complete with processor and radio module with the possibility of being self-powered and always on. In this way the system will be able to listen to incoming messages or to originate its own based on alarms of various kinds. In fact, the analog and digital pins available on the microcard will be increased. Basically, a set of three types of devices is envisaged: • shield for Arduino (and therefore also for RandA) intended for server or more elaborate station activities; • micro-card with possibility of self-powering via rechargeable battery, including Arduino processor (LilyPad type) and radio module; intended for peripheral stations also with solar panels. • remote control/mechanical alarm, presented in this article. Technical characteristics Power supply voltage: 12 Vdc Absorbed current: 20 mA Maximum detection distance: 500 m Dimensions (mm): 61x37x15 Documentation and useful links Library 3394/5000 Handheld transmitter based on the LoRa SX1278 radio module and managed by the ATmega32u4 microcontroller. Suitable for use in conjunction with the LoRa shield (see related products), it allows the implementation of long-range radio commands. For programming, a micro USB socket is available via the Arduino IDE. The transmitter is powered by a 12V type A23 battery with an average consumption of about 20mA during the activity. The radio control is supplied assembled, tested and complete with a container.Alternative use of the Remote Control HardwareIf in parallel to the button we connect a clean contact, such as a reed contact of those for doors and Windows (that of the burglar alarm, ed), we will create an efficient wireless anti-intrusion alarm sensor. For example by connecting it to a door we can receive on the server, even very far away, the signal of the opening that can be used as an alarm or as an event recording. In fact, remember that the LoRa shield can be mounted on RandA (our shield for Raspberry Pi that complements the core of Arduino UNO) where the Raspberry Pi processor can act as a sophisticated server, possibly connected to the Internet. The miniaturization of the remote control and its self-supply predispose it to be placed wherever a mechanically activated sensor is required. If we then add a small circuit that makes a very low-consumption timer (of a few nanoampere), we could operate electronically the button, for example, via a MOS transistor that acts as a switch. In this case we could periodically send to the server an analog value read on pin A2 or a digital value on pin D8. For this alternative use you could use a container of a size comparable to that for the remote control like the G1013 (with some adaptation), in case you do not want the window of the button.These alternative uses of the remote control are uses that rely on the momentary activation of the circuit that has a power supplied by a small non-rechargeable battery. But further processing of the remote control circuit is already being studied. In this new card, not too far from the remote control, a battery charger for 3.7 V LiPo batteries will be added. The result will be to have a complete processor and radio module card with the possibility of being self-contained. powered and remain always on. In this way the system will be able to listen to incoming messages or to originate their messages based on alarms of various kinds. In fact, the analog and digital pins available on the micro-card will be increased. Basically there is a set of three types of equipment:• shield for Arduino (and therefore also for RandA) intended for more elaborate server or station activities;• micro-card with the possibility of self-powering through a rechargeable battery, including an Arduino processor (of the LilyPad type) and radio module; destined to peripheral stations also to solar panels.• remote control / mechanical alarm, presented in this article.Technical featuresSupply voltage: 12 VdcCurrent consumption: 20 mAMaximum detection distance: 500 mDimensions (mm): 61x37x15Documentation and useful linkslibrary

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ELECTRONICS - DOMOTICS - REMOTE CONTROLS - AUTOMATION AND MECHANICS - SOFTWARE CREATIONS