Larry Bank bitbank2
bitbank2
/ nrf52_learning_ir_receiver.ino
Created
November 5, 2026 21:54
A learning remote control for your PC. Utilizing the Seeed nRF52840 1.47" LCD board and an inexpensive IR receiver, It allows you to use any inexpensive IR remote control to press the media keys on your PC to watch media from the comfort of your sofa.
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| #include <bb_spi_lcd.h> | |
| BB_SPI_LCD lcd; | |
| #include <Adafruit_LittleFS.h> | |
| #include <InternalFileSystem.h> | |
| #include <Adafruit_TinyUSB.h> | |
| using namespace Adafruit_LittleFS_Namespace; | |
| // HID report descriptor using TinyUSB's template | |
| // Single Report (no ID) descriptor | |
| uint8_t const desc_hid_report[] = | |
| { |
bitbank2
/ optimization_lesson.ino
Created
April 3, 2025 14:29
The code to accompany a lesson C optimization
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| // | |
| // Simple optimization example - performance measurement | |
| // | |
| // Simulate drawing a 16x16 character block | |
| uint8_t bitmap_out_tmp[16*16]; | |
| uint8_t bitmap_in[16*8]; | |
| static const uint8_t opa4_table[16] = {0, 17, 34, 51, | |
| 68, 85, 102, 119, | |
| 136, 153, 170, 187, |
bitbank2
/ CoreS3_Improved_Camera_Demo.ino
Created
December 15, 2024 13:57
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| // | |
| // Updated camera demo for the CoreS3 | |
| // written by Larry Bank | |
| // | |
| // The GC0308 640x480 camera only supports | |
| // uncompressed output (not JPEG). To create | |
| // JPEG images (e.g. for transmission over WiFi) | |
| // We must use a software JPEG encoder. The | |
| // JPEG codec supplied by Espressif: | |
| // https://github.com/espressif/esp32-camera/blob/master/conversions/to_jpg.cpp |
bitbank2
/ gzip_power_test.ino
Created
July 12, 2024 11:26
Arduino sketch to test power savings of gzip on esp32 HTTP GET requests
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| // | |
| // gzip power test | |
| // written by Larry Bank (bitbank@pobox.com) | |
| // July 9, 2024 | |
| // | |
| // This sketch uses my zlib_turbo to compare how much power | |
| // is used by a gzip payload vs uncompressed on the Unexpected Maker FeatherS2 | |
| // | |
| #include <WiFi.h> | |
| #include <HTTPClient.h> |
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| /* | |
| * Arduino.c | |
| * | |
| * Created on: Jan 12, 2023 | |
| * Author: larry | |
| */ | |
| #include "debug.h" | |
| #include <stdint.h> | |
| #include "Arduino.h" |
bitbank2
/ interactive_spi.ino
Created
March 25, 2023 08:18
An interactive serial terminal program to control GPIO, SPI, etc on a USB-connected Microcontroller
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| // | |
| // Interactive SPI & GPIO tester | |
| // written by Larry Bank | |
| // August 14, 2022 | |
| // | |
| // Purpose: Use the serial terminal to interactively test SPI & GPIO devices on ESP32 MCUs | |
| // | |
| // Copyright 2022 BitBank Software, Inc. All Rights Reserved. | |
| // Licensed under the Apache License, Version 2.0 (the "License"); | |
| // you may not use this file except in compliance with the License. |
bitbank2
/ person_sensor.h
Created
November 10, 2022 12:53
Person Sensor test sketch for Arduino (FeatherS3 w/OLED display)
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| #ifndef INCLUDE_PERSON_SENSOR_H | |
| #define INCLUDE_PERSON_SENSOR_H | |
| // Definitions for the Useful Sensors Person Sensor module. | |
| // Includes the standard I2C address of the sensor, constants for the | |
| // configuration commands, and the data structures used to communicate results | |
| // to the main system. | |
| // See the full developer guide at https://usfl.ink/ps_dev for more information. | |
| #include <stdint.h> |
bitbank2
/ gps_test.ino
Created
August 20, 2022 13:39
Simplest possible program to capture GPS current time and location (no external dependencies for parsing NMEA strings)
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| // | |
| // GP-02 GPS/BDS/GNSS module performance test | |
| // tested with a ESP32-S2 module (USB CDC serial + exposed HW UART pins) | |
| // | |
| #include <OneBitDisplay.h> | |
| ONE_BIT_DISPLAY obd; | |
| uint8_t u8Flags; | |
| #define FLAG_TIMEDATE 1 | |
| #define FLAG_POSITION 2 |
bitbank2
/ Roboto_Black_20.h
Created
August 18, 2022 11:18
ESP32-S2 (FeatherS2) e-ink weather station
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| // Created by http://oleddisplay.squix.ch/ Consider a donation | |
| // In case of problems make sure that you are using the font file with the correct version! | |
| const uint8_t Roboto_Black_20Bitmaps[] PROGMEM = { | |
| // Bitmap Data: | |
| 0x00, // ' ' | |
| 0xF7,0xBD,0xEF,0x39,0xCC,0x63,0x00,0xCF,0x30, // '!' | |
| 0xCD,0x9B,0x36,0x6C,0xD9,0x00, // '"' | |
| 0x0C,0xC0,0xCC,0x0D,0x80,0xD8,0x7F,0xE7,0xFE,0x19,0x81,0x90,0xFF,0xEF,0xFE,0x13,0x03,0x30,0x33,0x03,0x70, // '#' | |
| 0x04,0x00,0x80,0x7C,0x3F,0xC7,0xFC,0xE7,0x9C,0x03,0xE0,0x3F,0x03,0xF0,0x0F,0x70,0xEF,0x3D,0xFF,0x9F,0xE0,0xF8,0x0C,0x01,0x80, // '$' |
bitbank2
/ Roboto_Black_28.h
Created
July 9, 2022 16:32
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| // Created by http://oleddisplay.squix.ch/ Consider a donation | |
| // In case of problems make sure that you are using the font file with the correct version! | |
| const uint8_t Roboto_Black_28Bitmaps[] PROGMEM = { | |
| // Bitmap Data: | |
| 0x00, // ' ' | |
| 0xFB,0xEF,0x3C,0xF3,0xCF,0x3C,0xF3,0xCF,0x3C,0xF0,0x00,0x3C,0xF3,0xEF,0x3C, // '!' | |
| 0xF7,0x7B,0xB9,0xDC,0xEE,0x77,0x3B,0x9D,0xCE, // '"' | |
| 0x03,0x18,0x03,0x9C,0x01,0xCE,0x00,0xE7,0x00,0x73,0x80,0x39,0x81,0xFF,0xFC,0xFF,0xFE,0x7F,0xFF,0x07,0x38,0x03,0x9C,0x01,0xCC,0x0F,0xFF,0xE7,0xFF,0xF3,0xFF,0xF8,0x39,0xC0,0x1C,0xE0,0x0E,0x70,0x06,0x30,0x07,0x38,0x00, // '#' | |
| 0x03,0x80,0x07,0x00,0x0E,0x00,0x7E,0x01,0xFF,0x07,0xFF,0x1F,0xFE,0x3E,0x3E,0x78,0x7C,0xF8,0x01,0xF8,0x01,0xFC,0x01,0xFE,0x01,0xFE,0x00,0xFE,0x00,0x7E,0xF8,0x7D,0xF0,0xFB,0xF1,0xF3,0xFF,0xE7,0xFF,0x87,0xFE,0x03,0xF8,0x01,0x80,0x03,0x00,0x06,0x00, // '$' |
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