diff options
| -rw-r--r-- | LICENSES/BSD-2-Clause.txt | 22 | ||||
| -rw-r--r-- | Makefile | 4 | ||||
| -rw-r--r-- | README.md | 69 | ||||
| -rw-r--r-- | src/main.cc | 5 | ||||
| -rw-r--r-- | src/system.cc | 5 | ||||
| -rw-r--r-- | src/system.h | 5 |
6 files changed, 108 insertions, 2 deletions
diff --git a/LICENSES/BSD-2-Clause.txt b/LICENSES/BSD-2-Clause.txt new file mode 100644 index 0000000..baa80b5 --- /dev/null +++ b/LICENSES/BSD-2-Clause.txt @@ -0,0 +1,22 @@ +Copyright (c) <year> <owner> All rights reserved. + +Redistribution and use in source and binary forms, with or without modification, +are permitted provided that the following conditions are met: + +1. Redistributions of source code must retain the above copyright notice, +this list of conditions and the following disclaimer. + +2. Redistributions in binary form must reproduce the above copyright notice, +this list of conditions and the following disclaimer in the documentation +and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE +USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. @@ -1,3 +1,7 @@ +# Copyright 2023 Birte Kristina Friesel +# +# SPDX-License-Identifier: BSD-2-Clause + MCU_AVRDUDE ?= t2313 MCU_AVRGCC ?= attiny2313a AVRDUDE_PROGRAMMER ?= usbasp @@ -1,3 +1,68 @@ -ATTiny2313 Blinkencat mod +# ATTiny2313 Blinkencat mod -Based on [marble's BlinkenCat](https://hackaday.io/project/27415-blinkencat). +Application for RGBW [**Blinkencats**](https://finalrewind.org/projects/blinkencat/) with colourful animations. + +This project is based on ready-built cat night lights available on +Amazon / eBay / AliExpress (and probably more). +See also [marble's BlinkenCat project on hackaday.io](https://hackaday.io/project/27415-blinkencat). + + + + + +Hardware features: + +* Unmarked "1200 mAh" 18650 LiIon battery with connectors soldered on, likely + without protective circuitry +* TP4056 charge controller. It's specified for a fixed charge termination at + 4.2V ± 1% +* 4x warm-white LED + 4x RGB LED +* Unmarked microcontroller + +Battery and microUSB/button/LED PCB are housed beneath the main PCB. There is +ample room for additions, e.g. a custom charge controller and/or a custom +microcontroller. However, most 18650 battery holders are slightly too large +for the cavern, so increasing the battery capacity is only trivial if you +have a 18650 battery with connectors soldered on. + +Microcontroller pinout (courtesy of marble, pin 1 is top left when rotating the +board so that the microcontroller is at the bottom, numbered counter-clockwise): + +* 1: NC +* 2: Charge Status input +* 3: Piezo input +* 4: VCC +* 5: Warm White LED output +* 6: Button input +* 7: NC +* 8: Green LED output +* 9: Red LED output +* 10: Blue LED output +* 11: GND +* 12: Charge Status LED output +* 13: NC +* 14: NC + +input board pinout (pin 1 is left when rotating the case so that the board is +above the battery): + +* 1: button contact A +* 2: button contact B, microUSB GND +* 3: LED VCC, microUSB VCC +* 4: LED GND. Note that there is no resistor on the input board + +Following [marble's BlinkenCat +howto](https://hackaday.io/project/27415-blinkencat), I replaced its +microcontroller with an ATTiny2313A and implemented various steady-color and +RGB color fade modes. Idle current consumption is in the 10 µA range. + +It works well, is rock solid and provides around 10 hours of blinkenlights +(depending on mode). The firmware is available in my [blinkencat +repository](https://git.finalrewind.org/blinkencat/) ([GitHub +mirror](https://github.com/derf/blinkencat)). + +Power consumption in operation: + +* warm white: 128 mW +* RGB: 180 mW +* all LEDs on: 536 mW diff --git a/src/main.cc b/src/main.cc index 39a3e38..44a0c95 100644 --- a/src/main.cc +++ b/src/main.cc @@ -1,3 +1,8 @@ +/* + * Copyright 2023 Birte Kristina Friesel + * + * SPDX-License-Identifier: BSD-2-Clause + */ #include <avr/io.h> #include <stdlib.h> diff --git a/src/system.cc b/src/system.cc index 5eb3f77..273a8a4 100644 --- a/src/system.cc +++ b/src/system.cc @@ -1,3 +1,8 @@ +/* + * Copyright 2023 Birte Kristina Friesel + * + * SPDX-License-Identifier: BSD-2-Clause + */ #include <avr/io.h> #include <avr/interrupt.h> #include <avr/wdt.h> diff --git a/src/system.h b/src/system.h index d23caad..c2abe4a 100644 --- a/src/system.h +++ b/src/system.h @@ -1,3 +1,8 @@ +/* + * Copyright 2023 Birte Kristina Friesel + * + * SPDX-License-Identifier: BSD-2-Clause + */ #ifndef __SYSTEM_H__ #define __SYSTEM_H__ |