This is a full demo that connects to mbed Device Server. It is used with a I2C Grove Color sensor, so it should be compatible on all platforms that support Ethernet.
Dependencies: ColorDetectorV2 EthernetInterface mbed-rtos mbed nsdl
Fork of nespresso_endpoint by
mbed Software Configuration
The default mbed Device Server (NSP or mDS) configuration is used by an instance of the web app (Barista) here: http://barista-test.cloudapp.net:4005.
In main.cpp, find the following lines:
// **************************************************************************** // Configuration section // I2C Settings #define COLOR_SENSOR_SCL I2C_SCL #define COLOR_SENSOR_SDA I2C_SDA // Ethernet configuration /* Define this to enable DHCP, otherwise manual address configuration is used */ #define DHCP /* Manual IP configurations, if DHCP not defined */ #define IP "0.0.0.0" #define MASK "255.255.255.0" #define GW "0.0.0.0" // NSP configuration /* Change this IP address to that of your mbed Device Server installation if you're not using mbed Connector */ static const char* NSP_ADDRESS = "api.connector.mbed.org"; static const int NSP_PORT = 5683; char endpoint_name[] = "nespresso-machine-ethernet"; uint8_t ep_type[] = {"nespresso-endpoint"}; char nsp_domain[] = "56645321f5e24c49908e42f4d71b9ccb"; uint8_t lifetime_ptr[] = {"1200"}; // ****************************************************************************
Edit COLOR_SENSOR_SCL
and COLOR_SENSOR_SDA
to the appropriate I2C pins on your mbed platform.
You should not edit the DHCP/static IP settings if you are not using a static IP address. If you are using a static IP address, provide the appropriate information and remove the following line:
#define DHCP
Change endpoint_name
to uniquely identify your Nespresso endpoint.
If you are using mbed Connector, change the nsp_domain
string to your domain.
If you are using your own installation of mDS, you should change NSP_ADDRESS
to the url of your mDS installation, NSP_PORT
if you're using a non default port on mDS for CoAP, and nsp_domain
to a valid domain on your mDS instance ("domain" is the default mDS domain).
Diff: main.cpp
- Revision:
- 0:0782597771bc
- Child:
- 2:f26ac95c5029
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Apr 15 19:31:33 2015 +0000 @@ -0,0 +1,164 @@ +#include "mbed.h" +#include "EthernetInterface.h" +#include "nsdl_support.h" +#include "dbg.h" +#include "GroveColourSensor.h" +#include "ColorDetector.h" +#include "color_detector.h" + +Serial pc(USBTX, USBRX); // tx, rx + +// **************************************************************************** +// Configuration section + +// Ethernet configuration +/* Define this to enable DHCP, otherwise manual address configuration is used */ +#define DHCP + +/* Manual IP configurations, if DHCP not defined */ +#define IP "0.0.0.0" +#define MASK "255.255.255.0" +#define GW "0.0.0.0" + +// NSP configuration +/* Change this IP address to that of your mbed Device Server installation */ +static const char* NSP_ADDRESS = "10.112.30.70"; +static const int NSP_PORT = 5683; +char endpoint_name[] = "nespresso-client"; +uint8_t ep_type[] = {"mbed_device"}; +uint8_t lifetime_ptr[] = {"1200"}; + +// **************************************************************************** +// Ethernet initialization + +EthernetInterface eth; + +static void ethernet_init() +{ + // Initialize network +#ifdef DHCP + NSDL_DEBUG("DHCP in use\r\n"); + eth.init(); +#else + eth.init(IP, MASK, GW); +#endif + if(eth.connect(30000) == 0) + pc.printf("Connect OK\n\r"); + + NSDL_DEBUG("IP Address:%s ", eth.getIPAddress()); +} + +// **************************************************************************** +// NSP initialization + +UDPSocket server; +Endpoint nsp; + +static void nsp_init() +{ + server.init(); + server.bind(NSP_PORT); + + nsp.set_address(NSP_ADDRESS, NSP_PORT); + + NSDL_DEBUG("name: %s", endpoint_name); + NSDL_DEBUG("NSP=%s - port %d\n", NSP_ADDRESS, NSP_PORT); +} + +// **************************************************************************** +// Resource creation + +static int create_resources() +{ + sn_nsdl_resource_info_s *resource_ptr = NULL; + sn_nsdl_ep_parameters_s *endpoint_ptr = NULL; + + NSDL_DEBUG("Creating resources"); + + // Create resources + resource_ptr = (sn_nsdl_resource_info_s*)nsdl_alloc(sizeof(sn_nsdl_resource_info_s)); + if(!resource_ptr) + return 0; + memset(resource_ptr, 0, sizeof(sn_nsdl_resource_info_s)); + + resource_ptr->resource_parameters_ptr = (sn_nsdl_resource_parameters_s*)nsdl_alloc(sizeof(sn_nsdl_resource_parameters_s)); + if(!resource_ptr->resource_parameters_ptr) + { + nsdl_free(resource_ptr); + return 0; + } + memset(resource_ptr->resource_parameters_ptr, 0, sizeof(sn_nsdl_resource_parameters_s)); + + // Dynamic resources + create_color_detector_resource(resource_ptr); + + // Register with NSP + endpoint_ptr = nsdl_init_register_endpoint(endpoint_ptr, (uint8_t*)endpoint_name, ep_type, lifetime_ptr); + if(sn_nsdl_register_endpoint(endpoint_ptr) != 0) + pc.printf("NSP registering failed\r\n"); + else + pc.printf("NSP registering OK\r\n"); + nsdl_clean_register_endpoint(&endpoint_ptr); + + nsdl_free(resource_ptr->resource_parameters_ptr); + nsdl_free(resource_ptr); + return 1; +} + +// **************************************************************************** +// Program entry point + +int main() +{ + NSDL_DEBUG("mbed Nespresso Demo\n"); + + // Begin Color Sensor init + + // First, ensure I2C bus is released by toggling clock (fixes reset errors) + DigitalOut scl_dummy(I2C_SCL); + + for (int i = 0; i < 100; i++) { + scl_dummy = !scl_dummy; + wait_us(2); + } + + // Next, initialize I2C + I2C i2c(I2C_SDA, I2C_SCL); + + // Create color sensor instance + GroveColourSensor colorSensor(&i2c); + + // Various config + colorSensor.powerUp(); + colorSensor.setGain(1); + colorSensor.setBlockRead(); + + // Create color detector + ColorDetector detector(&colorSensor, 50); + detector.setBaseline(); + + // Pass reference to color detector + set_color_detector(&detector); + + // Initialize Ethernet interface first + ethernet_init(); + + // Initialize NSP node + nsp_init(); + + // Initialize NSDL stack + nsdl_init(); + + // Create NSDL resources + create_resources(); + + nsdl_event_loop_init(); + + while(true) { + // Check if any nsdl events need to be handled + nsdl_event_loop_run_once(); + + // Sample the color detector and potentially send samples to mDS + run_color_detector(); + } +}