4186 Results for "《 예약문의 OIO≡⑧④89≡83O⑥》레깅스룸견적よ레깅스룸ago레깅스룸メ강남레깅스룸eighty 선릉레깅스룸κ선릉레깅스⒲레깅스룸メｃ선릉레깅스룸literary"

Accuracy improvement and drilling capability
Log from PCB mill for under $10
I was not very impressed with the sloppyness, so I decided to redesign the Z-axis to reduce lateral play in the bit. I also thought it would be great if I could drill holes at the same time. I spent another $2 and got some new threded rod and a 0.8mm...

Ordering parts from McMaster Carr
Log from BuildLog Laser 2.x build
I choose to do the packs, since it is all useful bits and pieces and no matter how many of those darn pack of nuts, bolts screws, etc i buy from HF etc i never have the right ones. These quantities are for individual part quantities, and not boxes....

P channel Fet driver
Log from Bench power supply
So, today was the attack on the fet driver. Last night I paged thru a lot of datasheets before finding a circuit that I thought would work out properly for the project. Interestingly enough, it basically just offsets the drive signal of a low side fet...

A Class D Power Amplifier - and Why it Won't Work
Log from DC Current Transformer
First up, apologies for the long drought. I've been super busy at work putting together a MW (yes, MegaWatt) class prototype power converter at work, and it has been eating my life. Now I'm on holiday and finally have a moment to do an update.So,...

CPLD Topics
Log from HD6309 Singleboard Computer
A couple of other questions that I've been asked revolve around programming the CPLD, which I'll try to summarize here.CPLD Programming Questions regarding the Altera EPM7128S seem to fall into two 'buckets': tooling, and issues with flashing. CPLD Tooling...

LCD12864 on backorder
Log from Icon Alarm Clock
I finally got an update on the contest results: the LCD12864 shield is on backorder and should ship sometime in April. In the meantime, I may get things rolling by taking a stab at building an interim clock with something I have on-hand, either...

Arduino Sketch
Log from Web based solar panel monitoring/managment
Here is the Arduino Sketch. Nothing fancy. It is a mix of my code, code fragments from other peoples projects as well as vendor sample code.#include #include // Enter a MAC address and IP address for your controller below.// The IP address will be dependent...

Just practicing
Log from Smart Greenhouse using a Raspberry Pi & Launchpad
It has been quiet the past weeks, although I have been working quite extensively to find out new stuff for both my energy meter and greenhouse. I have been working primarily on the software side of things. I have been using a combination of Python, Flask,...

Playing around with LPC1114
Log from JJ Tricoder
Today I and yesterday played a bit with CMSIS DSP library, because I wanted some small FFT function for LPC1114. I must admit, it was the most painful "punch in da face" type of fail I ever experienced. Totally unfriendly, poorly documented and not working...

Single Supply Op Amps
Log from Prometheus Style TV Remote
I had one of the learning experiences last night where you set out to learn one piece of the puzzle, and the answers to that one piece cascade into solving other problems as well. It started with not knowing how to bias an op amp with a single sided...

Web interface - zones
Log from Home security
Zones are the basic monitoring elements. Currently the only zones present are the ones that are hardwired on the main board. There are physically present 7 analog zones and 4 digital ones. As you can see on the picture there is table that represents...

Email alerting
Log from Home security
Some time ago email alerting was added, along to SMS, to send email to predefined contacts. I have been thinking what would be easy to achieve for me but also for other users, and although I have small server running at home, I have opted for service...

Loose antenna connector
Log from Home security
Doing some experiment on my testing gateway I have put new pigtail on. I like to leave the SMA connector little loose, as it sits on table and is able to lay down completely when I move it. Staring gateway up, I was not able get response from nodes located...

Battery node with USB charging
Log from Home security
Shortly after introducing rearranged PCB layout for nodes, I realized that I use LiPo batteries in all my battery powered nodes. That is making no use of the step up capabilities of the DC to DC converter. When designing it I was wanting to have possibility...

New major version 1.7.6.0
Log from Home security
Since summer time I was adding some features to gateway that led into new major version 1.7.6.0. Changes include: Remote zones added. Added group arm and disarm chain. That is when arming/disarming group by key, Gateway is able to automatically arm/disarm...

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