Note: This is a bit of a scratch to see what's involved in getting the ping sensor to work as an I2C backpack.
I did this on a Trinket as that's what I had to hand to make programming a bit faster. If you use a trinket you will need the custom arduino. Check out the Adafruit Trinket info https://learn.adafruit.com/introducing-trinket/introduction
You also need a custom form of the TinyWireS library that manages sending multiple registers on one read request (the
| // Unverified | |
| #elif defined(AVR_NANO_EVERY) | |
| #define TOTAL_ANALOG_PINS 8 | |
| #define TOTAL_PINS 24 // 14 digital + 8 analog + 2 i2c | |
| #define IS_PIN_DIGITAL(p) ((p) >= 2 && (p) <= 21) // TBD if pins 0 and 1 are usable | |
| #define IS_PIN_ANALOG(p) ((p) >= 14 && (p) < 14 + TOTAL_ANALOG_PINS) | |
| #define IS_PIN_PWM(p) digitalPinHasPWM(p) | |
| #define IS_PIN_SERVO(p) (IS_PIN_DIGITAL(p) && (p) < MAX_SERVOS) // deprecated since v2.4 | |
| #define IS_PIN_I2C(p) ((p) == PIN_WIRE_SDA || (p) == PIN_WIRE_SCL) // SDA = 22, SCL = 23 | |
| #define IS_PIN_SPI(p) ((p) == SS || (p) == MOSI || (p) == MISO || (p) == SCK) |
| /* | |
| Firmata is a generic protocol for communicating with microcontrollers | |
| from software on a host computer. It is intended to work with | |
| any host computer software package. | |
| To download a host software package, please click on the following link | |
| to open the list of Firmata client libraries in your default browser. | |
| https://github.com/firmata/arduino#firmata-client-libraries |
| /* | |
| * Emulate a simple serial device in order to test the Firmata Serial protocol. | |
| * Connect the rxPin to the TX pin of the configured port of the board running StandardFirmata | |
| * Connect the txPin to the RX pin of the configured port of the board running StandardFirmata | |
| * | |
| * Use Serial to read and write to the board running StandardFirmata | |
| * Use SoftwareSerial to write data to a console to test SERIAL_WRITE | |
| */ | |
| #include <SoftwareSerial.h> |
| /* | |
| * Update line 18 below to the ESP8266 board address | |
| * | |
| * Enable Serial debugging by uncommenting //#defin SERIAL_DEBUG in StandardFirmataWiFi | |
| * (save a copy of StandardFirmataWiFi first) | |
| * | |
| * On startup (you may have to reset the ESP board because it starts up really fast | |
| * view the Serial output to see the assigned IP address (if using DHCP) | |
| * Or if you want to give the board a static IP (not use DHCP) then uncomment the | |
| * following lines in wifiConfig.h and update to your chosen IP address: |
| /* | |
| * To run, install the following modules: | |
| * npm install ble-serial | |
| * npm install johnny-five | |
| * | |
| * wiring: | |
| * button to pin D2 | |
| * button to pin A2 | |
| * LED to pin D10 | |
| * potentiometer to pin A0 |
| /* | |
| Firmata is a generic protocol for communicating with microcontrollers | |
| from software on a host computer. It is intended to work with | |
| any host computer software package. | |
| To download a host software package, please click on the following link | |
| to open the list of Firmata client libraries in your default browser. | |
| https://github.com/firmata/arduino#firmata-client-libraries |
| /* | |
| * NOTE: This will not run without modification until this issue is resolved: | |
| * https://github.com/RedBearLab/nRF51822-Arduino/pull/97. | |
| * | |
| * Until then, you will need to patch the RedBearLab nRF51822-Arduino core | |
| * library by following these instructions: | |
| * 1. Install v1.0.7 of the RedBear nRF51822 Boards package using the Arduino | |
| * Boards Manager (Tools > Boards > Boards Manager...). If you have a newer | |
| * version already installed, first downgrade to v1.0.7. | |
| * 2. Clone https://github.com/soundanalogous/nRF51822-Arduino and checkout the |
| /* | |
| * Make sure the Intel Curie Boards by Intel board package version 1.0.6 or higher is installed | |
| * via the Arduino Boards Manager | |
| * | |
| * Compile and upload StandardFirmataBLE from the firmata/arduino master branch. | |
| * | |
| * To run, install the following modules: | |
| * npm install ble-serial | |
| * npm install firmata | |
| * |
| /* | |
| OneWireFirmata.cpp - Firmata library | |
| Copyright (C) 2012-2013 Norbert Truchsess. All rights reserved. | |
| Copyright (C) 2016 Jeff Hoefs. All rights reserved. | |
| 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. |