Daniel Lee
This is an example based on mbed-os cellular APIs that demonstrates a TCP or UDP echo transaction with a public echo server. Included TPB23 NB-IoT module which is can use LGU+ in Korea.
This example is showing how to use the NB-IoT(SECOM TPB23 module) of LGU plus network in Korea. The NB-IoT module' seller provided a document on how to start based on Mbed OS 5.11. (Created by CodeZoo) This guide has been supported to the latest os version which included 5.12 ~ 5.15.
- if you need specific version of Mbed OS, please revision of TPB23_Driver and check it out.
- Pelion ready example code is here!
Requirement
- Need to check CodeZoo's s hardware a guide.
- Need a CodeZoo's NBIoT board and development board.
- Board picture & Jumper configure
- And also can use with mbed application shield, as shown below.
Tested with
- DISCO_L475VG_IOT01A - If you are in Korea, can buy here !
- NUCLEO_F429ZI - If you are in Korea, can buy here !
1. Import the application into your desktop
mbed import http://os.mbed.com/users/Daniel_Lee/code/mbed-os-example-cellular-TPB23/ cd mbed-os-example-cellular-TPB23
2. Compile and program
mbed compile -t <toolchain> -m <TARGET_BOARD>
(supported toolchains : GCC_ARM / ARM / IAR)
3. Download binary to a target board
4. Result
mbed-os-example-cellular Built: Aug 7 2019, 06:10:47 [MAIN], plmn: NULL Establishing connection [00000001ms][INFO][CELL]: New CellularContext (20000a08) [00000002ms][INFO][CELL]: CellularContext plmn NULL [00000003ms][INFO][CELL]: CellularContext connect [00000036ms][INFO][CELL]: RSSI -69 dBm [00000036ms][INFO][CELL]: Start connecting (timeout 1 s) [00000087ms][INFO][CELL]: RSSI -69 dBm [00000116ms][INFO][CELL]: Modem ready [00000146ms][INFO][CELL]: RSSI -69 dBm [00000146ms][INFO][CELL]: Setup SIM (timeout 1 s) [00001233ms][INFO][CELL]: Looked up APN internet [00001362ms][ERR ][CELL]: AT error code 50 [00001362ms][WARN][CELL]: Packet domain event reporting set failed! [00001393ms][INFO][CELL]: RSSI -65 dBm [00001393ms][INFO][CELL]: Network registration (timeout 180 s) [00001443ms][INFO][CELL]: Registering network => Attaching network [00001473ms][INFO][CELL]: RSSI -65 dBm [00001473ms][INFO][CELL]: Attaching network (timeout 60 s) [00001601ms][INFO][CELL]: Found PDP context 1 [00001649ms][INFO][CELL]: Activate PDP context 1 Connection Established. [00001671ms][INFO][CELL]: Socket 0 open [00001707ms][INFO][CELL]: Socket 1 open [00001748ms][INFO][CELL]: Socket create id: 1 [00001883ms][INFO][CELL]: Socket 1 sent 43 bytes to 8.8.8.8 port 53 [00004311ms][INFO][CELL]: Socket 1 recv 59 bytes from 8.8.8.8 port 53 [00004331ms][INFO][CELL]: Close socket: 1 error: 0 [00004331ms][INFO][CELL]: Socket 1 closed [00004373ms][INFO][CELL]: Socket create id: 1 TCP: connected with echo.mbedcloudtesting.com server [00004448ms][INFO][CELL]: Socket 0 sent 4 bytes to 52.215.34.155 port 7 TCP: Sent 4 Bytes to echo.mbedcloudtesting.com [00007560ms][INFO][CELL]: Socket 0 recv 4 bytes [00007580ms][INFO][CELL]: Close socket: 1 error: 0 [00007580ms][INFO][CELL]: Socket 0 closed Received from echo server 4 Bytes [00007581ms][INFO][CELL]: CellularContext disconnect() [00007630ms][INFO][CELL]: cb: CellularContext disconnected Success. Exiting
SERCOMM/TPB23/SERCOMM_TPB23_CellularStack.h@45:63eba30af193, 2019-08-07 (annotated)
- Committer:
- Daniel_Lee
- Date:
- Wed Aug 07 06:31:31 2019 +0000
- Revision:
- 45:63eba30af193
Update for Mbed OS 5.12.x; This code was tested on Mbed OS 5.12.2, please check code revision!
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| Daniel_Lee | 45:63eba30af193 | 1 | /* |
| Daniel_Lee | 45:63eba30af193 | 2 | * Copyright (c) 2017, Arm Limited and affiliates. |
| Daniel_Lee | 45:63eba30af193 | 3 | * SPDX-License-Identifier: Apache-2.0 |
| Daniel_Lee | 45:63eba30af193 | 4 | * |
| Daniel_Lee | 45:63eba30af193 | 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| Daniel_Lee | 45:63eba30af193 | 6 | * you may not use this file except in compliance with the License. |
| Daniel_Lee | 45:63eba30af193 | 7 | * You may obtain a copy of the License at |
| Daniel_Lee | 45:63eba30af193 | 8 | * |
| Daniel_Lee | 45:63eba30af193 | 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| Daniel_Lee | 45:63eba30af193 | 10 | * |
| Daniel_Lee | 45:63eba30af193 | 11 | * Unless required by applicable law or agreed to in writing, software |
| Daniel_Lee | 45:63eba30af193 | 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| Daniel_Lee | 45:63eba30af193 | 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| Daniel_Lee | 45:63eba30af193 | 14 | * See the License for the specific language governing permissions and |
| Daniel_Lee | 45:63eba30af193 | 15 | * limitations under the License. |
| Daniel_Lee | 45:63eba30af193 | 16 | */ |
| Daniel_Lee | 45:63eba30af193 | 17 | |
| Daniel_Lee | 45:63eba30af193 | 18 | #ifndef SERCOMM_TPB23_CELLULARSTACK_H_ |
| Daniel_Lee | 45:63eba30af193 | 19 | #define SERCOMM_TPB23_CELLULARSTACK_H_ |
| Daniel_Lee | 45:63eba30af193 | 20 | |
| Daniel_Lee | 45:63eba30af193 | 21 | #include "AT_CellularStack.h" |
| Daniel_Lee | 45:63eba30af193 | 22 | |
| Daniel_Lee | 45:63eba30af193 | 23 | #define TPB23_SOCKET_MAX 7 |
| Daniel_Lee | 45:63eba30af193 | 24 | |
| Daniel_Lee | 45:63eba30af193 | 25 | namespace mbed { |
| Daniel_Lee | 45:63eba30af193 | 26 | |
| Daniel_Lee | 45:63eba30af193 | 27 | class SERCOMM_TPB23_CellularStack : public AT_CellularStack { |
| Daniel_Lee | 45:63eba30af193 | 28 | public: |
| Daniel_Lee | 45:63eba30af193 | 29 | SERCOMM_TPB23_CellularStack(ATHandler &atHandler, int cid, nsapi_ip_stack_t stack_type); |
| Daniel_Lee | 45:63eba30af193 | 30 | virtual ~SERCOMM_TPB23_CellularStack(); |
| Daniel_Lee | 45:63eba30af193 | 31 | |
| Daniel_Lee | 45:63eba30af193 | 32 | protected: // NetworkStack |
| Daniel_Lee | 45:63eba30af193 | 33 | |
| Daniel_Lee | 45:63eba30af193 | 34 | virtual nsapi_error_t socket_listen(nsapi_socket_t handle, int backlog); |
| Daniel_Lee | 45:63eba30af193 | 35 | |
| Daniel_Lee | 45:63eba30af193 | 36 | virtual nsapi_error_t socket_accept(nsapi_socket_t server, |
| Daniel_Lee | 45:63eba30af193 | 37 | nsapi_socket_t *handle, SocketAddress *address = 0); |
| Daniel_Lee | 45:63eba30af193 | 38 | |
| Daniel_Lee | 45:63eba30af193 | 39 | virtual nsapi_error_t socket_connect(nsapi_socket_t handle, const SocketAddress &address); |
| Daniel_Lee | 45:63eba30af193 | 40 | |
| Daniel_Lee | 45:63eba30af193 | 41 | protected: // AT_CellularStack |
| Daniel_Lee | 45:63eba30af193 | 42 | |
| Daniel_Lee | 45:63eba30af193 | 43 | virtual int get_max_socket_count(); |
| Daniel_Lee | 45:63eba30af193 | 44 | |
| Daniel_Lee | 45:63eba30af193 | 45 | virtual bool is_protocol_supported(nsapi_protocol_t protocol); |
| Daniel_Lee | 45:63eba30af193 | 46 | |
| Daniel_Lee | 45:63eba30af193 | 47 | virtual nsapi_error_t socket_close_impl(int sock_id); |
| Daniel_Lee | 45:63eba30af193 | 48 | |
| Daniel_Lee | 45:63eba30af193 | 49 | virtual nsapi_error_t create_socket_impl(CellularSocket *socket); |
| Daniel_Lee | 45:63eba30af193 | 50 | |
| Daniel_Lee | 45:63eba30af193 | 51 | virtual nsapi_size_or_error_t socket_sendto_impl(CellularSocket *socket, const SocketAddress &address, |
| Daniel_Lee | 45:63eba30af193 | 52 | const void *data, nsapi_size_t size); |
| Daniel_Lee | 45:63eba30af193 | 53 | |
| Daniel_Lee | 45:63eba30af193 | 54 | virtual nsapi_size_or_error_t socket_recvfrom_impl(CellularSocket *socket, SocketAddress *address, |
| Daniel_Lee | 45:63eba30af193 | 55 | void *buffer, nsapi_size_t size); |
| Daniel_Lee | 45:63eba30af193 | 56 | |
| Daniel_Lee | 45:63eba30af193 | 57 | private: |
| Daniel_Lee | 45:63eba30af193 | 58 | // URC handlers |
| Daniel_Lee | 45:63eba30af193 | 59 | void urc_nsonmi(); |
| Daniel_Lee | 45:63eba30af193 | 60 | }; |
| Daniel_Lee | 45:63eba30af193 | 61 | } // namespace mbed |
| Daniel_Lee | 45:63eba30af193 | 62 | #endif /* SERCOMM_TPB23_CELLULARSTACK_H_ */ |