Topics created by ahhk

Hi, or use a small bulb instead neon...should also work. But a cap in parallel is always a good idea for this.

hi Andreas, if you change your dimension in EAGLE then OSHPark and others will cut the PCB in that form. But you can also just define a "keep out" area with a polygon. The capacitor seems OK to me. All 100nF I have are 2.54mm pitch. My 10uF capacitor is 5mm diameter (8mm high), the 100uF is 7mm diameter (12mm high). I am not familiar with 3mm duo-leds. I live in Wilrijk, south of Antwerpen (Belgium), but I spent some time on other continents and even three months in Munchen as a student working in the research facilities of Siemens in Neu Perlach. I'm assuming you live in Germany. Gert

This guy has actually tested the mcp16251 and posted his findings on YouTube https://m.youtube.com/watch?v=O5o6JUjz6Yc

Hi, thats a LOT of text - wow. but very interesting (didnt read everything until now). Is there a topic or discussion ongoing on this? Maybe it can be redone with "mysensors 2.0" (in parallel to 1.5).. I will make a deep-dive into the source code now. Its too interesting and i like this kind of coding At last: Sry that i opened another topic for this question. looks like i didnt use the right words in the search Greetings

@ahhk said: Hi, i searched a lot and read a lot about step-up and step-down converters in the last days, but i didnt find a really "good one" - and already soldered on pcb. Soldering is in general not a problem for me, except smd (i hate smd soldering). Has anyone a hint for a good booster (2xAA => 3.3V) or a step-down-regulator (3xAA => 3.3V) ? Greetings Andreas How about this? http://www.ti.com/product/TPS82740B/description&lpos=Middle_Container&lid=Alternative_Devices

@alexsh1 Indeed, there is a solderpad near to the D2 pin which needs to be closed (connected) to allow the IRQ signal to go to D2, so one can use the radio

Although i like the idea, it will force you to send a value even if it has not changed. Defeats a bit a battery optimized sensor node.

Well, it don't want to compile. $ make g++ -Wall -fPIC -Ofast -mfpu=vfp -mfloat-abi=hard -mtune=arm1176jzf-s -march=armv6zk -D BCM2835_PERI_BASE=0x -c RF24.cpp In file included from /usr/include/stdio.h:927:0, from ./RF24_config.h:24, from RF24.cpp:17: /usr/include/arm-linux-gnueabihf/bits/stdio.h: In function ‘int vprintf(const char*, __gnuc_va_list)’: /usr/include/arm-linux-gnueabihf/bits/stdio.h:37:58: sorry, unimplemented: Thumb-1 hard-float VFP ABI