Library for I2C 4 channel relay module
Dependents: K9_Head_Controller
MultiChannelRelay.h
- Committer:
- SomeRandomBloke
- Date:
- 2020-09-08
- Revision:
- 0:661beaa91d83
File content as of revision 0:661beaa91d83:
/* multi_channel_relay.cpp Seeed multi channel relay Arduino library Copyright (c) 2018 Seeed Technology Co., Ltd. Author : lambor Create Time : June 2018 Change Log : This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #pragma once #ifndef MULTI_CHANNEL_RELAY_H #define MULTI_CHANNEL_RELAY_H #include "mbed.h" #define DEBUG_PRINT pc.printf #define CHANNLE1_BIT 0x01 #define CHANNLE2_BIT 0x02 #define CHANNLE3_BIT 0x04 #define CHANNLE4_BIT 0x08 #define CHANNLE5_BIT 0x10 #define CHANNLE6_BIT 0x20 #define CHANNLE7_BIT 0x40 #define CHANNLE8_BIT 0x80 #define CMD_CHANNEL_CTRL 0x10 #define CMD_SAVE_I2C_ADDR 0x11 #define CMD_READ_I2C_ADDR 0x12 #define CMD_READ_FIRMWARE_VER 0x13 class MultiChannelRelay { public: MultiChannelRelay(I2C *i2c, uint8_t slave_adr = 0x11); /** @brief Change device address from old_addr to new_addr. @param new_addr, the address to use. old_addr, the original address @return None */ void changeI2CAddress(uint8_t new_addr, uint8_t old_addr); /** /brief Get channel state /return One byte value to indicate channel state the bits range from 0 to 7 represents channel 1 to 8 */ uint8_t getChannelState(void); /** @brief Read firmware version from on board MCU @param @return Firmware version in byte */ uint8_t getFirmwareVersion(void); /** @brief Control relay channels @param state, use one Byte to represent 8 channel @return None */ void channelCtrl(uint8_t state); /** @brief Turn on one of 8 channels @param channel, channel to control with (range form 1 to 8) @return None */ void turn_on_channel(uint8_t channel); /** @brief Turn off on of 8 channels @param channel, channel to control with (range form 1 to 8) @return None */ void turn_off_channel(uint8_t channel); bool sendToDevice( char *cmd, int reqSize, int respSize, long msWait ); private: I2C *_i2c; int _i2cAddr; // This is the I2C address you want to use int channel_state; // Value to save channel state }; #endif