Skywire_Demo - Demo using a Nimbelink Skywire cellular modem pai…

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NimbeLink / Mbed 2 deprecated Skywire_Demo

Demo using a Nimbelink Skywire cellular modem paired with ST Nucleo. This demo reads several sensors and reports them to a Freeboard dashboard using dweet.io from Buglabs

Dependencies: LIS3DH LM75B LPS331 hts221 mbed

Fork of Skywire_Demo by NimbeLink

Getting Started Guide

Set the JP5 jumper to E5V on the Nucleo
Place the Skywire Shield onto the Nucleo as pictured
Place the Skywire modem onto the Shield as picture and attach the antenna U.FL coax cable as pictured
Plug the 12V wall supply into the Skywire Shield

Go to https://freeboard.io/ and create a user account
Once you are logged into your Freeboard account, go to https://freeboard.io/board/PJI272 and clone the dashboard by clicking the CLONE link in the lower right corner
- Old Revision of dashboard is here https://freeboard.io/board/jqlneI

The new dashboard will show up on you account list under My Freeboards, you can then edit the name to whatever you like

Under the Datasources tab on the dashboard, click the skywire link

Change the THING NAME field to a unique string, we recommended using the MEID or IMEI on the Skywire Modem, but it could be anything you want.

Next, Import the Skywire_Demo program into the online compiler
Open main.cpp. Starting at Line 58, there is a list of Skywire Modems. Uncomment the Skywire Modem that you are using. Make sure only one Skywire Modem is uncommented:

main.cpp

/*
 * DEFINE THE SKYWIRE MODEM
 * Uncomment only the modem that you are using.
 * Make sure only one modem is uncommented!
 */
//#define NL_SW_1xRTT_V         // Verizon 2G Modem - CE910-DUAL
//#define NL_SW_1xRTT_S         // Sprint 2G Modem - CE910-DUAL
//#define NL_SW_1xRTT_A         // Aeris 2G Modem - CE910-DUAL
//#define NL_SW_GPRS            // AT&T/T-Mobile 2G Modem
//#define NL_SW_EVDO_V          // Verizon 3G Modem
//#define NL_SW_EVDO_A          // Aeris 3G Modem
//#define NL_SW_HSPAP           // AT&T/T-Mobile 3G Modem
//#define NL_SW_HSPAPG          // AT&T/T-Mobile 3G Modem w/ GPS
//#define NL_SW_HSPAPE          // GSM 3G Modem, EU
//#define NL_SW_LTE_TSVG        // Verizon 4G LTE Modem
//#define NL_SW_LTE_TNAG        // AT&T/T-Mobile 4G LTE Modem
//#define NL_SW_LTE_TEUG        // GSM 4G LTE Modem, EU
//#define NL_SW_LTE_GELS3       // VZW LTE Cat 1 Modem

Next, to Line 73 in main.cpp, and change the DeviceID to the THING NAME you entered into your Freeboard:

main.cpp

/* --CHANGE THIS FOR YOUR SETUP" -- */
#define DeviceID "DweetIODeviceName"  //Freeboard DweetIO unique ID

If applicable, go to Line 77 in main.cpp and change the APN to your specific APN:

main.cpp

/* --CHANGE THIS FOR YORU SETUP (IF APPLICABLE)-- */
#if defined NL_SW_HSPAP || defined NL_SW_HSPAPG || defined NL_SW_HSPAPE || defined NL_SW_LTE_TSVG || defined NL_SW_LTE_TNAG || defined NL_SW_LTE_TEUG || defined NL_SW_LTE_GELS3
    std::string APN = "yourAPNhere";
#endif

Compile and upload to the Nucleo, cycle power to the shield and the sensor data should start to upload to your new Freeboard.

main.cpp@3:4b2176f6474c, 2015-01-12 (annotated)

Committer:: kholland
Date:: Mon Jan 12 23:27:12 2015 +0000
Revision:: 3:4b2176f6474c
Parent:: 2:b57e24a42b6f
Child:: 4:e7a79d3542e1

Code to wait for correct response from skywire

Who changed what in which revision?

User	Revision	Line number	New contents of line
kholland	0:3095958bc639	1
kholland	0:3095958bc639	2
kholland	0:3095958bc639	3	#include "mbed.h"
kholland	0:3095958bc639	4	#include "LPS331.h"
kholland	0:3095958bc639	5	#include "LIS3DH.h"
kholland	0:3095958bc639	6	#include "LM75B.h"
kholland	0:3095958bc639	7
kholland	0:3095958bc639	8	/* --CHANGE THIS FOR YOUR SETUP" -- */
kholland	0:3095958bc639	9	#define DeviceID "mbedskywire" //Freeboard DweetIO unique ID
kholland	0:3095958bc639	10
kholland	0:3095958bc639	11	DigitalOut myled(LED1);
kholland	0:3095958bc639	12	DigitalOut skywire_en(PA_6);
kholland	0:3095958bc639	13	DigitalOut skywire_rts(PA_7);
kholland	0:3095958bc639	14
kholland	0:3095958bc639	15	Serial skywire(PA_9,PA_10);
kholland	0:3095958bc639	16	Serial debug_pc(USBTX, USBRX);
kholland	0:3095958bc639	17
kholland	0:3095958bc639	18	I2C i2c(PB_9,PB_8);
kholland	0:3095958bc639	19	char msg[3];
kholland	0:3095958bc639	20
kholland	0:3095958bc639	21	LPS331 pressure(i2c);
kholland	0:3095958bc639	22	LM75B LM75_temp(PB_9,PB_8);
kholland	0:3095958bc639	23	LIS3DH accel(i2c, LIS3DH_V_CHIP_ADDR, LIS3DH_DR_NR_LP_100HZ, LIS3DH_FS_2G);
kholland	0:3095958bc639	24
kholland	0:3095958bc639	25
kholland	3:4b2176f6474c	26	char str[255];
kholland	3:4b2176f6474c	27
kholland	0:3095958bc639	28	float latitude;
kholland	0:3095958bc639	29	float longitude;
kholland	0:3095958bc639	30	int number;
kholland	0:3095958bc639	31
kholland	3:4b2176f6474c	32	volatile int rx_in=0;
kholland	3:4b2176f6474c	33	volatile int rx_out=0;
kholland	3:4b2176f6474c	34	const int buffer_size = 255;
kholland	3:4b2176f6474c	35	char rx_buffer[buffer_size+1];
kholland	3:4b2176f6474c	36
kholland	3:4b2176f6474c	37	char rx_line[buffer_size];
kholland	3:4b2176f6474c	38
kholland	3:4b2176f6474c	39	void Skywire_Rx_interrupt() {
kholland	3:4b2176f6474c	40	// Loop just in case more than one character is in UART's receive FIFO buffer
kholland	3:4b2176f6474c	41	// Stop if buffer full
kholland	3:4b2176f6474c	42	while ((skywire.readable()) && (((rx_in + 1) % buffer_size) != rx_out)) {
kholland	3:4b2176f6474c	43	rx_buffer[rx_in] = skywire.getc();
kholland	3:4b2176f6474c	44	rx_in = (rx_in + 1) % buffer_size;
kholland	3:4b2176f6474c	45	}
kholland	3:4b2176f6474c	46	return;
kholland	3:4b2176f6474c	47	}
kholland	3:4b2176f6474c	48
kholland	3:4b2176f6474c	49	void read_line() {
kholland	3:4b2176f6474c	50	int i;
kholland	3:4b2176f6474c	51	i = 0;
kholland	3:4b2176f6474c	52	// Start Critical Section - don't interrupt while changing global buffer variables
kholland	3:4b2176f6474c	53	__disable_irq();
kholland	3:4b2176f6474c	54	// Loop reading rx buffer characters until end of line character
kholland	3:4b2176f6474c	55	while ((i==0) \|\| (rx_line[i-1] != '\n')) {
kholland	3:4b2176f6474c	56	// Wait if buffer empty
kholland	3:4b2176f6474c	57	if (rx_in == rx_out) {
kholland	3:4b2176f6474c	58	// End Critical Section - need to allow rx interrupt to get new characters for buffer
kholland	3:4b2176f6474c	59	__enable_irq();
kholland	3:4b2176f6474c	60	while (rx_in == rx_out) {
kholland	3:4b2176f6474c	61	}
kholland	3:4b2176f6474c	62	// Start Critical Section - don't interrupt while changing global buffer variables
kholland	3:4b2176f6474c	63	__disable_irq();
kholland	3:4b2176f6474c	64	}
kholland	3:4b2176f6474c	65	rx_line[i] = rx_buffer[rx_out];
kholland	3:4b2176f6474c	66	i++;
kholland	3:4b2176f6474c	67	rx_out = (rx_out + 1) % buffer_size;
kholland	3:4b2176f6474c	68	}
kholland	3:4b2176f6474c	69	// End Critical Section
kholland	3:4b2176f6474c	70	__enable_irq();
kholland	3:4b2176f6474c	71	rx_line[i-1] = 0;
kholland	3:4b2176f6474c	72	return;
kholland	3:4b2176f6474c	73	}
kholland	3:4b2176f6474c	74	int WaitForResponse(char* response, int num) {
kholland	3:4b2176f6474c	75	do {
kholland	3:4b2176f6474c	76	read_line();
kholland	3:4b2176f6474c	77	debug_pc.printf("Waiting for: %s, Recieved: %s\r\n", response, rx_line);
kholland	3:4b2176f6474c	78	} while (strncmp(rx_line, response, num));
kholland	3:4b2176f6474c	79	return 0;
kholland	3:4b2176f6474c	80	}
kholland	0:3095958bc639	81	int main()
kholland	0:3095958bc639	82	{
kholland	0:3095958bc639	83	float axis[3];
kholland	0:3095958bc639	84	float press;
kholland	0:3095958bc639	85	float temp;
kholland	0:3095958bc639	86
kholland	3:4b2176f6474c	87
kholland	0:3095958bc639	88	debug_pc.baud(115200);
kholland	0:3095958bc639	89	skywire.baud(115200);
kholland	3:4b2176f6474c	90	skywire.attach(&Skywire_Rx_interrupt, Serial::RxIrq);
kholland	0:3095958bc639	91	skywire_rts=0;
kholland	0:3095958bc639	92	myled=0;
kholland	3:4b2176f6474c	93	debug_pc.printf("Starting Demo...\r\n");
kholland	3:4b2176f6474c	94	debug_pc.printf("Waiting for Skywire to Boot...\r\n");
kholland	0:3095958bc639	95	//Enable Skywire
kholland	0:3095958bc639	96	skywire_en=0;
kholland	0:3095958bc639	97	wait(2);
kholland	0:3095958bc639	98	skywire_en=1;
kholland	0:3095958bc639	99	wait(2);
kholland	0:3095958bc639	100	skywire_en=0;
kholland	3:4b2176f6474c	101
kholland	3:4b2176f6474c	102	myled=1;
kholland	0:3095958bc639	103	wait(5);
kholland	3:4b2176f6474c	104
kholland	3:4b2176f6474c	105	LM75_temp.open();
kholland	0:3095958bc639	106
kholland	3:4b2176f6474c	107	//Turn off echo
kholland	3:4b2176f6474c	108	skywire.printf("ATE0\r\n");
kholland	3:4b2176f6474c	109	WaitForResponse("OK", 2);
kholland	3:4b2176f6474c	110
kholland	3:4b2176f6474c	111	debug_pc.printf("Connecting to Network...\r\n");
kholland	0:3095958bc639	112	// get IP address
kholland	3:4b2176f6474c	113	skywire.printf("AT#SGACT=1,1\r\n");
kholland	3:4b2176f6474c	114	WaitForResponse("#SGACT", 6);
kholland	3:4b2176f6474c	115	WaitForResponse("OK", 2);
kholland	0:3095958bc639	116
kholland	0:3095958bc639	117	// connect to dweet.io
kholland	3:4b2176f6474c	118	skywire.printf("AT#HTTPCFG=1,\"dweet.io\",80,0\r\n");
kholland	3:4b2176f6474c	119	WaitForResponse("OK", 2);
kholland	0:3095958bc639	120
kholland	0:3095958bc639	121	//get location approximation from cell tower information
kholland	0:3095958bc639	122	skywire.printf("AT#AGPSSND\r\n");
kholland	3:4b2176f6474c	123	WaitForResponse("#AGPSRING:", 10);
kholland	3:4b2176f6474c	124
kholland	3:4b2176f6474c	125	//debug_pc.printf("Skywire says: %s\r\n", rx_line);
kholland	3:4b2176f6474c	126	sscanf(rx_line, "%s %d,%f,%f,", str, &number, &latitude, &longitude);
kholland	3:4b2176f6474c	127	debug_pc.printf("Location: Latt:%f, Long:%f\r\n", latitude, longitude);
kholland	3:4b2176f6474c	128	wait(3);
kholland	3:4b2176f6474c	129
kholland	0:3095958bc639	130	while(1) {
kholland	0:3095958bc639	131	temp = (float)LM75_temp;
kholland	3:4b2176f6474c	132	debug_pc.printf("Temp = %.3f\r\n", temp);
kholland	0:3095958bc639	133	press=(float)pressure.value() / 4096;
kholland	3:4b2176f6474c	134	debug_pc.printf("Pressure = %.3f\r\n", press);
kholland	0:3095958bc639	135	accel.read_data(axis);
kholland	3:4b2176f6474c	136	debug_pc.printf("Accel = %.3f, %.3f, %.3f\r\n", axis[0], axis[1], axis[2]);
kholland	3:4b2176f6474c	137	// wait(10);
kholland	3:4b2176f6474c	138
kholland	0:3095958bc639	139	//Report Sensor Data to dweet.io
kholland	0:3095958bc639	140	skywire.printf("AT#HTTPQRY=1,0,\"/dweet/for/%s?temperature=%.3f&pressure=%.3f&X=%.3f&Y=%.3f&Z=%.3f&Latitude=%f&Longitude=%f\"\r\n", DeviceID, temp, press, axis[0], axis[1], axis[2], latitude, longitude);
kholland	3:4b2176f6474c	141	WaitForResponse("#HTTPRING", 9);
kholland	0:3095958bc639	142	skywire.printf("AT#HTTPRCV=1\r\n");
kholland	3:4b2176f6474c	143	WaitForResponse("OK", 2);
kholland	0:3095958bc639	144	wait(5);
kholland	3:4b2176f6474c	145	}
kholland	0:3095958bc639	146
kholland	0:3095958bc639	147	}