Matthijs Kooijman matthijskooijman
matthijskooijman
/ gist:ea3b7818f9be3cd1e2489ae0d8507d30
Created
March 14, 2019 10:48
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| Bij het ontwerp van het MJS meetstation is evoor gekozen om zo min mogelijk | |
| "moeilijke" componenten te gebruiken. | |
| De schakeling is zo opgebouwd dat de sensor met twee stroommeetweerstanden kan | |
| worden uitgelezen. | |
| Om het aantal verschillende weerstandswaarden in het bouwpakket te beperken is | |
| zijn daarvoor 10K (R11) en 100K (R12) gekozen. Dit | |
| zijn de standaard waarden die in het bouwpakket zitten. | |
| Door R11 te verkleinen naar bijvoorbeeld 2K2 kan je het bereik van de sensor | |
| verhogen. | |
| In de code dien je dan de waarde voor R11 aan te passen: |
matthijskooijman
/ gist:c2a33827ea47c97eb497c3665cf1a71e
Created
March 12, 2019 20:45
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| diff -Nru grfcodec-6.0.6/debian/changelog grfcodec-6.0.6/debian/changelog | |
| --- grfcodec-6.0.6/debian/changelog 2018-05-10 21:42:34.000000000 +0200 | |
| +++ grfcodec-6.0.6/debian/changelog 2019-03-12 21:36:07.000000000 +0100 | |
| @@ -1,3 +1,19 @@ | |
| +grfcodec (6.0.6-3) unstable; urgency=medium | |
| + | |
| + [ Jordi Mallach ] | |
| + * [bc95db0] Force build to abort upon endian_check.cpp build failure. | |
| + Thanks to Helmut Grohne for suggesting this fix (Closes: #922625) | |
| + * [63c5aa0] Move M-A field to binary section. |
matthijskooijman
/ gist:d03a895f86b80ffc7314e36cb7aab69c
Created
March 8, 2019 10:25
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| matthijs@grubby:/usr/lib/avr/include/avr$ grep END iom328p.h | |
| #define RAMEND 0x8FF /* Last On-Chip SRAM Location */ | |
| #define XRAMEND RAMEND | |
| #define E2END 0x3FF | |
| #define FLASHEND 0x7FFF |
matthijskooijman
/ .avrduderc
Created
October 13, 2018 09:57
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| # Pinout based on http://doswa.com/2010/08/24/avrdude-5-10-with-ftdi-bitbang.html | |
| # I could not use the builtin ft232r and others, since these all need | |
| # different handshaking pins | |
| programmer | |
| id = "ftdi_cts_dtr"; | |
| desc = "FTDI adapter with CTS and DTR exposed"; | |
| type = "ftdi_syncbb"; | |
| connection_type = usb; | |
| miso = 1; # RXD | |
| sck = 3; # CTS |
matthijskooijman
/ gist:89e3fd69aaf714466524eb93f7197260
Created
August 29, 2018 14:55
Read AVR / Atmega2560 signature byte area; signature is at addresses 0, 2, 4, calibration byte is at address 1
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| #include <avr/boot.h> | |
| void setup() { | |
| Serial.begin(115200); | |
| // put your setup code here, to run once: | |
| for (uint8_t i = 0; i < 16; ++i) { | |
| Serial.print(i); | |
| Serial.print(": "); | |
| Serial.println(boot_signature_byte_get(i), HEX); | |
| } |
matthijskooijman
/ gist:3fb82196c5c4ac47d29ced071204f3bc
Created
May 17, 2018 07:01
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| %YAML 1.1 | |
| --- | |
| # meetjestad.sensors_measurement | |
| - | |
| id: 2591299 | |
| station_id: 122 | |
| message_id: 2560602 | |
| timestamp: "2018-05-17 07:00:57" | |
| latitude: 52.1712 | |
| longitude: 5.3945 |
matthijskooijman
/ gist:0bb6ef88d086b7dd2e01f669f75699a1
Created
April 30, 2018 13:16
ICU symbols used by OpenTTD 1.8.0 from ICU 60
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| 0000000000000000 DF *UND* 0000000000000000 icu_60::ParagraphLayout::Line::getWidth() const | |
| 0000000000000000 DF *UND* 0000000000000000 icu_60::BreakIterator::createCharacterInstance(icu_60::Locale const&, UErrorCode&) | |
| 0000000000000000 DF *UND* 0000000000000000 icu_60::LEFontInstance::unitsToPoints(LEPoint&, LEPoint&) const | |
| 0000000000000000 DF *UND* 0000000000000000 icu_60::LEFontInstance::~LEFontInstance() | |
| 0000000000000000 DF *UND* 0000000000000000 icu_60::Locale::~Locale() | |
| 0000000000000000 DF *UND* 0000000000000000 icu_60::LEFontInstance::yPixelsToUnits(float) const | |
| 0000000000000000 DF *UND* 0000000000000000 icu_60::Collator::createInstance(icu_60::Locale const&, UErrorCode&) | |
| 0000000000000000 DF *UND* 0000000000000000 icu_60::UMemory::operator new(unsigned long) | |
| 0000000000000000 DF *UND* 0000000000000000 icu_60::StringPiece::StringPiece(char const*) |
matthijskooijman
/ foo.asm
Created
February 9, 2018 21:52
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| // This approach is the simplest and does not fix the rounding issue, so | |
| // this OK/-1/-2/-3 pattern repeats over and over (all delays are | |
| // rounded down to a multiple of 3) | |
| delayMicroseconds(0): ERR: 5 cycles == 5.00us | |
| delayMicroseconds(1): ERR: 4 cycles == 4.00us | |
| delayMicroseconds(2): ERR: 3 cycles == 3.00us | |
| delayMicroseconds(3): ERR: 2 cycles == 2.00us | |
| delayMicroseconds(4): ERR: 1 cycles == 1.00us | |
| delayMicroseconds(5): OK | |
| delayMicroseconds(6): ERR: -1 cycles == -1.00us |
matthijskooijman
/ 00Results
Created
February 8, 2018 11:57
delayMicroseconds test - Paul's implementation
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| >> Constants @16Mhz | |
| delayMicroseconds(0): OK | |
| delayMicroseconds(1): OK | |
| delayMicroseconds(2): OK | |
| delayMicroseconds(3): OK | |
| delayMicroseconds(4): OK | |
| delayMicroseconds(5): OK | |
| delayMicroseconds(6): OK | |
| delayMicroseconds(7): OK | |
| delayMicroseconds(8): OK |
matthijskooijman
/ 00Results
Last active
February 8, 2018 11:41
delayMicroseconds test - original implementation
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| >> Constants @24Mhz | |
| delayMicroseconds(0): OK | |
| delayMicroseconds(1): ERR: -17 cycles == -0.71us | |
| delayMicroseconds(2): ERR: -17 cycles == -0.71us | |
| delayMicroseconds(3): ERR: -17 cycles == -0.71us | |
| delayMicroseconds(4): ERR: -18 cycles == -0.75us | |
| delayMicroseconds(5): ERR: -17 cycles == -0.71us | |
| delayMicroseconds(6): ERR: -19 cycles == -0.79us | |
| delayMicroseconds(7): ERR: -17 cycles == -0.71us | |
| delayMicroseconds(8): ERR: -19 cycles == -0.79us |