Source Edit

MCP23X17 GPIO Expander Module - 16-bit I/O Expansion via I2C/SPI

Barebones driver for MCP23017/MCP23S17 16-bit I/O expanders. Currently supports I2C transport only (polling mode).

Imports

nimphea, i2c

Types

Mcp23017 = object: Source Edit
Mcp23017Config = object transport_config*: Mcp23017TransportConfig: Source Edit
Mcp23017TransportConfig = object periph*: I2CPeripheral speed*: I2CSpeed scl*, sda*: Pin address*: uint8: Source Edit
MCPMode = enum MCP_INPUT, MCP_INPUT_PULLUP, MCP_OUTPUT: Source Edit
MCPPort = enum MCP_PORT_A = 0, MCP_PORT_B = 1: Source Edit

proc defaults(config: var Mcp23017Config) {....raises: [], tags: [], forbids: [].}: Source Edit
proc defaults(config: var Mcp23017TransportConfig) {....raises: [], tags: [], forbids: [].}: Source Edit
proc digitalWrite(mcp: var Mcp23017; port: MCPPort; value: uint8) {....raises: [], tags: [], forbids: [].}: Source Edit
proc getPin(mcp: Mcp23017; pin: uint8): bool {....raises: [], tags: [], forbids: [].}: Source Edit
proc init(mcp: var Mcp23017; config: Mcp23017Config) {....raises: [], tags: [], forbids: [].}: Source Edit
proc portMode(mcp: var Mcp23017; port: MCPPort; directions, pullups, inverted: uint8) {....raises: [], tags: [], forbids: [].}: Source Edit
proc read(mcp: var Mcp23017): uint16 {....raises: [], tags: [], forbids: [].}: Source Edit
proc readPort(mcp: var Mcp23017; port: MCPPort): uint8 {....raises: [], tags: [], forbids: [].}: Source Edit