Skip to content

Instantly share code, notes, and snippets.

View rwoloszyn's full-sized avatar

Rafal Woloszyn rwoloszyn

11 followers · 17 following
View GitHub Profile
@rwoloszyn
rwoloszyn / pylooper.py
Created June 9, 2018 21:01
Python serial sending character in loop
import serial
import time
def main():
ser = serial.Serial('/dev/ttyUSB0', 230400, timeout=1)
print(ser.name)
count = 0
while True:
@rwoloszyn
rwoloszyn / serialloop.sh
Last active June 9, 2018 21:03
Bash serial (tty) looper
#!/bin/bash
DEVICE=/dev/ttyUSB0
BAUDRATE=230400
echo "=======SETTINGS========="
echo "port: $DEVICE"
echo "spped: $BAUDRATE"
echo "========================"
@rwoloszyn
rwoloszyn / daysleft.js
Created June 19, 2018 14:08
Calculate days left in js (React native)
_getLeftActivationDays = (finishDate) => {
var endDate = new Date(finishDate);
var today = new Date();
var oneDay = 24 * 60 * 60 * 1000;
return Math.round(Math.abs((today.getTime() - endDate.getTime())/ oneDay));
}
@rwoloszyn
rwoloszyn / forms.py
Created June 20, 2018 22:48
Custom label for ModelChoicesField in django framework
class SimpleProjectModelChoicesField(ModelChoiceField):
def label_from_instance(self, obj):
return '{name}'.format(name=obj.name)
class CourseForm(ModelForm):
project = SimpleProjectModelChoicesField(queryset=Project.objects.filter(is_active=True))
def __init__(self, *args, **kwargs):
self.request = kwargs.pop("request")
@rwoloszyn
rwoloszyn / element_template.py
Created August 9, 2018 20:06
Django get element from m2m relation in django template
{% with object.group_set.all|first as group %}
<li class="breadcrumb-item"><a href="{% url 'group_detail' group_id=view.kwargs.group_id %}">{{ group.name }}</a></li>
{% endwith %}
@rwoloszyn
rwoloszyn / gist:8543d76561d522a45554a8d8a451149b
Created March 16, 2020 22:48
STM32F446 TIMER2 Ooutput COmpare PA3 1MHz square wave
void HAL_AFE_Init1MHZ_Clock(void){
//RCC_AHB1PeriphClockCmd(HAL_DS_AFE_CLK1MHZ_PORT_GPIO_AHB_BIT, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
GPIO_Init(HAL_DS_AFE_CLK1MHZ_PORT, (GPIO_InitTypeDef *) &HAL_DS_1MHz_CLK_GpioConfiguration);
GPIO_PinAFConfig(HAL_DS_AFE_CLK1MHZ_PORT, HAL_DS_AFE_CLK1MHZ_AF_PINSOURCE ,GPIO_AF_TIM2);
TIM_TimeBaseInitTypeDef TIM2_TimeBaseStructure;
TIM2_TimeBaseStructure.TIM_Period = 21;