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Merge branch 'master' of git.starbeamrainbowlabs.com:sbrl/arduino

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Starbeamrainbowlabs 2018-11-15 19:03:15 +00:00
commit a0b68ebc15
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GPG key ID: 1BE5172E637709C2
5 changed files with 286 additions and 4 deletions
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249
Examples/LoRaWAN-LMIC-OTAA/LoRaWAN-LMIC-OTAA.ino Normal file
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@ -0,0 +1,249 @@
/*******************************************************************************
* Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman
* Copyright (c) 2018 Terry Moore, MCCI
*
* Permission is hereby granted, free of charge, to anyone
* obtaining a copy of this document and accompanying files,
* to do whatever they want with them without any restriction,
* including, but not limited to, copying, modification and redistribution.
* NO WARRANTY OF ANY KIND IS PROVIDED.
*
* This example sends a valid LoRaWAN packet with payload "Hello,
* world!", using frequency and encryption settings matching those of
* the The Things Network.
*
* This uses OTAA (Over-the-air activation), where where a DevEUI and
* application key is configured, which are used in an over-the-air
* activation procedure where a DevAddr and session keys are
* assigned/generated for use with all further communication.
*
* Note: LoRaWAN per sub-band duty-cycle limitation is enforced (1% in
* g1, 0.1% in g2), but not the TTN fair usage policy (which is probably
* violated by this sketch when left running for longer)!
* To use this sketch, first register your application and device with
* the things network, to set or generate an AppEUI, DevEUI and AppKey.
* Multiple devices can use the same AppEUI, but each device has its own
* DevEUI and AppKey.
*
* Do not forget to define the radio type correctly in config.h.
*
*******************************************************************************/
#include <lmic.h>
#include <hal/hal.h>
#include <SPI.h>
#define UPLINK_CHANNEL 1
//
// For normal use, we require that you edit the sketch to replace FILLMEIN
// with values assigned by the TTN console. However, for regression tests,
// we want to be able to compile these scripts. The regression tests define
// COMPILE_REGRESSION_TEST, and in that case we define FILLMEIN to a non-
// working but innocuous value.
//
// This EUI must be in little-endian format, so least-significant-byte
// first. When copying an EUI from ttnctl output, this means to reverse
// the bytes. For TTN issued EUIs the last bytes should be 0xD5, 0xB3,
// 0x70.
static const u1_t PROGMEM APPEUI[8] = { 0x4D, 0x41, 0x01, 0xD0, 0x7E, 0xD5, 0xB3, 0x70 };
void os_getArtEui (u1_t* buf) { memcpy_P(buf, APPEUI, 8);}
// This should also be in little endian format, see above.
static const u1_t PROGMEM DEVEUI[8] = { 0xA1, 0x4C, 0x99, 0xC5, 0x8D, 0xA1, 0x2E, 0x00 };
void os_getDevEui (u1_t* buf) { memcpy_P(buf, DEVEUI, 8);}
// This key should be in big endian format (or, since it is not really a
// number but a block of memory, endianness does not really apply). In
// practice, a key taken from ttnctl can be copied as-is.
static const u1_t PROGMEM APPKEY[16] = { 0xCB, 0x95, 0x29, 0x6C, 0x57, 0x88, 0x24, 0xCD, 0xBA, 0x6A, 0x90, 0xA8, 0x8E, 0x99, 0x7C, 0x64 };
void os_getDevKey (u1_t* buf) { memcpy_P(buf, APPKEY, 16);}
static uint8_t mydata[] = "Hello, world!";
static osjob_t sendjob;
// Schedule TX every this many seconds (might become longer due to duty
// cycle limitations).
const unsigned TX_INTERVAL = 60;
// Pin mapping
const lmic_pinmap lmic_pins = {
.nss = 10,
.rxtx = LMIC_UNUSED_PIN,
.rst = 5,
.dio = {2, 3, 4},
};
// Disables all channels, except for the one defined above, and sets the
// data rate (SF). This only affects uplinks; for downlinks the default
// channels or the configuration from the OTAA Join Accept are used.
//
// Not LoRaWAN compliant; FOR TESTING ONLY!
//
void forceTxSingleChannelDr(int channel, int data_rate) {
for(int i=0; i<9; i++) { // For EU; for US use i<71
if(i != channel) {
LMIC_disableChannel(i);
}
}
// Set data rate (SF) and transmit power for uplink
LMIC_setDrTxpow(data_rate, 14);
}
void onEvent (ev_t ev) {
Serial.print(os_getTime());
Serial.print(": ");
switch(ev) {
case EV_SCAN_TIMEOUT:
Serial.println(F("EV_SCAN_TIMEOUT"));
break;
case EV_BEACON_FOUND:
Serial.println(F("EV_BEACON_FOUND"));
break;
case EV_BEACON_MISSED:
Serial.println(F("EV_BEACON_MISSED"));
break;
case EV_BEACON_TRACKED:
Serial.println(F("EV_BEACON_TRACKED"));
break;
case EV_JOINING:
Serial.println(F("EV_JOINING"));
break;
case EV_JOINED:
Serial.println(F("EV_JOINED"));
{
u4_t netid = 0;
devaddr_t devaddr = 0;
u1_t nwkKey[16];
u1_t artKey[16];
LMIC_getSessionKeys(&netid, &devaddr, nwkKey, artKey);
Serial.print("netid: ");
Serial.println(netid, DEC);
Serial.print("devaddr: ");
Serial.println(devaddr, HEX);
Serial.print("artKey: ");
for (int i=0; i<sizeof(artKey); ++i) {
Serial.print(artKey[i], HEX);
}
Serial.println("");
Serial.print("nwkKey: ");
for (int i=0; i<sizeof(nwkKey); ++i) {
Serial.print(nwkKey[i], HEX);
}
Serial.println("");
}
forceTxSingleChannelDr(UPLINK_CHANNEL, /*data_rate*/DR_SF7);
// Disable link check validation (automatically enabled
// during join, but because slow data rates change max TX
// size, we don't use it in this example.
LMIC_setLinkCheckMode(0);
break;
/*
|| This event is defined but not used in the code. No
|| point in wasting codespace on it.
||
|| case EV_RFU1:
|| Serial.println(F("EV_RFU1"));
|| break;
*/
case EV_JOIN_FAILED:
Serial.println(F("EV_JOIN_FAILED"));
break;
case EV_REJOIN_FAILED:
Serial.println(F("EV_REJOIN_FAILED"));
break;
case EV_TXCOMPLETE:
Serial.println(F("EV_TXCOMPLETE (includes waiting for RX windows)"));
if (LMIC.txrxFlags & TXRX_ACK)
Serial.println(F("Received ack"));
if (LMIC.dataLen) {
Serial.print(F("Received "));
Serial.print(LMIC.dataLen);
Serial.println(F(" bytes of payload"));
}
// Schedule next transmission
os_setTimedCallback(&sendjob, os_getTime()+sec2osticks(TX_INTERVAL), do_send);
break;
case EV_LOST_TSYNC:
Serial.println(F("EV_LOST_TSYNC"));
break;
case EV_RESET:
Serial.println(F("EV_RESET"));
break;
case EV_RXCOMPLETE:
// data received in ping slot
Serial.println(F("EV_RXCOMPLETE"));
break;
case EV_LINK_DEAD:
Serial.println(F("EV_LINK_DEAD"));
break;
case EV_LINK_ALIVE:
Serial.println(F("EV_LINK_ALIVE"));
break;
/*
|| This event is defined but not used in the code. No
|| point in wasting codespace on it.
||
|| case EV_SCAN_FOUND:
|| Serial.println(F("EV_SCAN_FOUND"));
|| break;
*/
case EV_TXSTART:
Serial.println(F("EV_TXSTART"));
break;
default:
Serial.print(F("Unknown event: "));
Serial.println((unsigned) ev);
break;
}
}
void do_send(osjob_t* j){
// Check if there is not a current TX/RX job running
if (LMIC.opmode & OP_TXRXPEND) {
Serial.println(F("OP_TXRXPEND, not sending"));
} else {
// Prepare upstream data transmission at the next possible time.
LMIC_setTxData2(1, mydata, sizeof(mydata)-1, 0);
Serial.println(F("Packet queued"));
}
// Next TX is scheduled after TX_COMPLETE event.
}
void setup() {
Serial.begin(9600);
Serial.println(F("Starting"));
#ifdef VCC_ENABLE
// For Pinoccio Scout boards
pinMode(VCC_ENABLE, OUTPUT);
digitalWrite(VCC_ENABLE, HIGH);
delay(1000);
#endif
// LMIC init
os_init();
// Reset the MAC state. Session and pending data transfers will be discarded.
LMIC_reset();
// Make LMIC initialize the default channels, choose a channel, and
// schedule the OTAA join
LMIC_startJoining();
// LMIC will already have decided to send on one of the 3 default
// channels; ensure it uses the one we want
LMIC.txChnl = UPLINK_CHANNEL;
// ...and make sure we see the EV_JOINING event being logged
os_runloop_once();
// Start job (sending automatically starts OTAA too)
do_send(&sendjob);
}
void loop() {
os_runloop_once();
}

3
Examples/UNO_rf95_client/UNO_rf95_client.ino
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@ -35,7 +35,8 @@ void setup()
} }
Serial.println("rf95.init() ok"); Serial.println("rf95.init() ok");
// Defaults after init are 434.0MHz, 13dBm, Bw = 125 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on // Defaults after init are 434.0MHz, 13dBm, Bw = 125 kHz,
// Cr = 4/5, Sf = 128chips/symbol, CRC on
rf95.setFrequency(868.1); rf95.setFrequency(868.1);

2
Examples/UNO_rf95_server/UNO_rf95_server.ino
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@ -39,7 +39,7 @@ void setup()
// Defaults after init are 434.0MHz, 13dBm, Bw = 125 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on // Defaults after init are 434.0MHz, 13dBm, Bw = 125 kHz, Cr = 4/5, Sf = 128chips/symbol, CRC on
rf95.setFrequency(868.0); rf95.setFrequency(868.1);
//rf95.setTxPower(10, true); //rf95.setTxPower(10, true);
} }

31
README.md
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@ -1,6 +1,35 @@
# arduino # arduino
A place for all the arduino code I write. > A place for all the Arduino code I write.
A collection of projects and example code for various Arduino-related devices.
My goal here is to make sure that everything is documented clearly enough that it should be a fairly easy and frustration-free experience picking up a project from here and running it. To that end, if you experience any difficulties - please contact me! Methods to get in touch are detailed on [my website](https://starbeamrainbowlabs.com/).
## Libraries
For some reason, the Arduino IDE is absolutely _ridiculous_ in that it keeps libraries globally installed. Some of the projects and examples here require that libraries are installed to work, unfortunately (I wasn't able to get them to function any other way :-/). To that end, I've listed below the libraries and where to get them from that I've used.
### RadioHead
Used in some of the low-level LoRa test programs. This requires cloning the _RadioHead_ repository into the Arduino IDE libraries folder, which is by default located at `~/Arduino/libraries`. Here's the clone command in question:
```bash
git clone https://github.com/PaulStoffregen/RadioHead.git
```
Execute it in the Arduino libraries folder as mentioned above.
### LMIC
Required for the LoRaWAN projects. Installable through the _library manager_ if you search `LMIC`.
In addition, for some reason the author of this library has made a very bad design choice, in that you've got to alter the _original library code_ in order for it to work. Navigate to the Arduino IDE's library folder (by default `~/Arduino/libraries`), enter the `MCCI_LoRaWAN_LMIC_library` directory, and then open `src/lmic/config.h` for editing. You want to uncomment line 50, which should read like so once uncommented:
```c
#define CFG_sx1276_radio 1
```
## Useful Resources ## Useful Resources

3
SizeOfTest/SizeOfTest.ino
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@ -4,6 +4,9 @@ void setup() {
Serial.print("Size of int: "); Serial.print("Size of int: ");
Serial.println(sizeof(int)); Serial.println(sizeof(int));
Serial.print("Size of long: ");
Serial.println(sizeof(long));
Serial.print("Size of float: "); Serial.print("Size of float: ");
Serial.println(sizeof(float)); Serial.println(sizeof(float));