![](/media/cache/group/default_image.jpg.50x50_q85.jpg)
mDot source code for the "fan" mDot in this demo: https://twitter.com/MultiTechSys/status/621708791009124352
Dependencies: DigitDisplay MTS-Utils libmDot mbed-rtos mbed
mDot source code for the "fan" mDot in this demo: https://twitter.com/MultiTechSys/status/621708791009124352
Diff: main.cpp
- Revision:
- 0:eaddea2e2d72
- Child:
- 1:cf83fcba7d02
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Mon Jun 29 21:37:10 2015 +0000 @@ -0,0 +1,247 @@ +// --------------------------------------------- +// MultiTech Thermostat & Fan Demo (fan unit) +// +// This program runs on a MultiTech mDot with: +// - 1 Grove LED05291P 4-digit display +// - 1 relay for fan control +// --------------------------------------------- + +#include "mbed.h" +#include "mDot.h" +#include "MTSText.h" +#include "DigitDisplay.h" + +mDot* dot; +Ticker ledTick; +Ticker periodicPollTick; + +DigitalOut led(LED1); +DigitalOut fan(PA_1); +DigitDisplay display(PB_1, PB_0); + +// Configuration variables +static std::string config_network_name = "mts-fan-demo1"; +static std::string config_network_pass = "multitech"; +static uint8_t config_frequency_sub_band = 2; + +static volatile bool timeToPollConduit = true; + +//Function prototypes +void printError(mDot* dot, int32_t returnCode); +void printVersion(); +bool setFrequencySubBand(uint8_t subBand); +bool setNetworkName(const std::string name); +bool setNetworkPassphrase(const std::string passphrase); +bool setPower(uint8_t power); +bool setAck(uint8_t retries); +bool joinNetwork(); +bool send(const std::string text); +std::string receive(); +void ledTock(); +void periodicPollTock(); + + +int main() +{ + //Start LED startup sequence + ledTick.attach(&ledTock, 0.1); + + printf("\r\n\r\n"); + printf("=====================================\r\n"); + printf("MTS Thermostat/Fan Demo (Fan unit)\r\n"); + printf("=====================================\r\n"); + printVersion(); + + // get the mDot handle + dot = mDot::getInstance(); + + // reset to default config so we know what state we're in + dot->resetNetworkSession(); + dot->resetConfig(); + + // set up the mDot with our network information + setNetworkName(config_network_name); + setNetworkPassphrase(config_network_pass); + setFrequencySubBand(config_frequency_sub_band); + setPower(7); // Reduce latency for 868 units + setAck(0); // Disable ack for less latency + + while (!joinNetwork()) { wait(2); dot->resetNetworkSession(); } + + // Stop LED startup sequence & configure them for operation + ledTick.detach(); + led = 1; + + // Configure timers + periodicPollTick.attach(&periodicPollTock, 2); + + static bool fanState = false; + uint16_t setPoint = 0; + uint16_t temperature = 0; + + while (1) { + if (timeToPollConduit) { + std::string rxData; + + led = 1; + display.setColon(false); + + // Send packet (Only send payload if no data pending because Node-RED queues new packet if payload not empty) + send(dot->getDataPending() ? "" : " "); + // Receive a packet + rxData = receive(); + + if (rxData.size() > 0) { + printf("Rx packet data: %s\r\n", rxData.c_str()); + + // Parse receive data + std::vector<std::string> bytes; + bytes = mts::Text::split(rxData, " "); + temperature = atoi(bytes[0].c_str()); + setPoint = atoi(bytes[1].c_str()); + fanState = atoi(bytes[2].c_str()); + + // Update 4 digit display + display.write(0, temperature / 10); + display.write(1, temperature % 10); + display.write(2, setPoint / 10); + display.write(3, setPoint % 10); + + fan = fanState; + } + else { + printf("Nothing!\r\n"); + } + + timeToPollConduit = false; + display.setColon(true); + led = 0; + } + } +} + +void ledTock() { + led = !led; +} + +void periodicPollTock() { + timeToPollConduit = true; +} + + +void printVersion() +{ + printf("%s\r\n\r\n", dot->getId().c_str()); +} + +bool setFrequencySubBand(uint8_t subBand) +{ + int32_t returnCode; + printf("Setting frequency sub band to '%d'...\r\n", subBand); + if ((returnCode = dot->setFrequencySubBand(subBand)) != mDot::MDOT_OK) { + printError(dot, returnCode); + return false; + } + return true; +} + +bool setNetworkName(const std::string name) +{ + int32_t returnCode; + printf("Setting network name to '%s'...\r\n", name.c_str()); + if ((returnCode = dot->setNetworkName(name)) != mDot::MDOT_OK) + { + printError(dot, returnCode); + return false; + } + return true; +} + +bool setNetworkPassphrase(const std::string passphrase) +{ + int32_t returnCode; + printf("Setting passphrase to '%s'...\r\n", passphrase.c_str()); + if ((returnCode = dot->setNetworkPassphrase(passphrase)) != mDot::MDOT_OK) + { + printError(dot, returnCode); + return false; + } + return true; +} + +bool setPower(uint8_t power) +{ + int32_t returnCode; + printf("Setting tx power to '%d'...\r\n", power); + if ((returnCode = dot->setTxPower(power)) != mDot::MDOT_OK) { + printError(dot, returnCode); + return false; + } + return true; +} + + +bool joinNetwork() +{ + int32_t returnCode; + printf("\r\nJoining network...\r\n"); + if ((returnCode = dot->joinNetworkOnce()) != mDot::MDOT_OK) { + printError(dot, returnCode); + return false; + } + printf("Network Joined!\r\n"); + return true; +} + +bool setAck(uint8_t retries) +{ + int32_t returnCode; + printf("Setting ack to '%d'...\r\n", retries); + if ((returnCode = dot->setAck(retries)) != mDot::MDOT_OK) + { + printError(dot, returnCode); + return false; + } + return true; +} + +bool send(const std::string text) +{ + int32_t returnCode; + uint32_t timeTillSend = dot->getNextTxMs(); + if (timeTillSend != 0) { + printf("waiting %lu ms to send\r\n", timeTillSend); + return false; + } + + printf("Sending data... "); + std::vector<uint8_t> data(text.begin(), text.end()); + if ((returnCode = dot->send(data, 1)) != mDot::MDOT_OK) + { + printError(dot, returnCode); + return false; + } + printf("Data sent!\r\n"); + return true; +} + +std::string receive() +{ + printf("Receiving packet... "); + std::string text; + std::vector<uint8_t> data(text.begin(), text.end()); + data.clear(); + + if (dot->recv(data) == mDot::MDOT_OK) { + if (data.size() > 0) { + return std::string((const char*) &data[0], data.size()); + } + } + return ""; +} + +void printError(mDot* dot, int32_t returnCode) +{ + std::string error = mDot::getReturnCodeString(returnCode) + " - " + dot->getLastError(); + printf("%s\r\n", error.c_str()); +}