nebel/node-web-i2c
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Nebel 2019-10-18 21:48:05 +09:00
parent 068309de60
commit 99c06ce43a
2 changed files with 17 additions and 4 deletions
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1
index.d.ts vendored
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@ -27,6 +27,7 @@ export interface I2CSlaveDevice {
write16(registerNumber: number, value: number): Promise<number>; write16(registerNumber: number, value: number): Promise<number>;
} }
export declare class OperationError extends Error { export declare class OperationError extends Error {
constructor(message: string);
} }
export declare function requestI2CAccess(): Promise<I2CAccess>; export declare function requestI2CAccess(): Promise<I2CAccess>;
export {}; export {};

20
index.js
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@ -45,15 +45,27 @@ class I2CPort {
}); });
return { return {
slaveAddress, slaveAddress,
read8: cmd => bus.readByte(slaveAddress, cmd), read8: cmd => bus.readByte(slaveAddress, cmd).catch(error => {
read16: cmd => bus.readWord(slaveAddress, cmd), throw new OperationError(error);
write8: (cmd, byte) => bus.writeByte(slaveAddress, cmd, byte), }),
write16: (cmd, word) => bus.writeWord(slaveAddress, cmd, word) read16: cmd => bus.readWord(slaveAddress, cmd).catch(error => {
throw new OperationError(error);
}),
write8: (cmd, byte) => bus.writeByte(slaveAddress, cmd, byte).catch(error => {
throw new OperationError(error);
}),
write16: (cmd, word) => bus.writeWord(slaveAddress, cmd, word).catch(error => {
throw new OperationError(error);
})
}; };
} }
} }
exports.I2CPort = I2CPort; exports.I2CPort = I2CPort;
class OperationError extends Error { class OperationError extends Error {
constructor(message) {
super(message);
this.name = this.constructor.name;
}
} }
exports.OperationError = OperationError; exports.OperationError = OperationError;
async function requestI2CAccess() { async function requestI2CAccess() {