2388 Results for "N 온라인손오공게임 CDDC7닷컴 ◆프로모션번호 b77◆용산카지노㈣월드컵예선경기생중계ᇭ하노버ᇡ토토신🍋온라인손오공게임강추 luniform/"

Design Challenge n.6: balance circuit mosfet N short circuit failure
Log from Green BMS
This was the first version of the balancing circuit diagram of cell module: The balancing command digital output (from Attiny microcontroller) drives a N-channel Logic Mosfet which closes the circuit on the balancing resistor. I did not like this version...

VoCore + WeMo ebb N flow hack
Log from Aquaponics HG
WeMo Insight SwitchCost: $49.99 (Amazon.com)VoCore: $39.99Control: WeMo AppMy goal turn the WeMo on for 10minsto drains the tables into the pond.Then turn it off for 20mins to ebb the deep water beds.Repeat 24hrs per day.WeMo required start on the hr...

Design challenge n.10: Project development
Log from Green BMS
With my experience I have learned that, before starting with the development of a project, it is advisable to dedicate some time to create a simulation platform, in order to have the whole system at hand, with the various interconnected components. It...

Design challenge n.12: Control Unit Interfaces
Log from Green BMS
The main function of a BMS is to give consent to charge or discharge the battery. To make green BMS as versatile as possible, in order to cover many types of applications with different powers, I made this choice: I decided to use relays. With the free...

Design challenge n.14: data exchange management
Log from Green BMS
A complicated challenge of this project was the management of data exchange in the installed networks. The I2c communication with the cells is the main network (always alive), the Bluetooth communication with Android app is the secondary network, that...

Design challenge n.8: temperature sensors
Log from Green BMS
One of my goals in this project was to do a temperature control on each single cell module, in order to remove the enabling for charging and discharging in case of high temperature. First I had to choose the type of sensor. Due to the supply voltage...

Design Challenge n.13: Android app
Log from Green BMS
At the beginning of the project, I was thinking of connecting a touchscreen display as a human-machine interface, which is a typical solution used by many. But immediately I asked myself: how many times does the user of a BMS need to look at the display...

Design challenge n.4: voltage measurement accuracy
Log from Green BMS
Attiny84 microcontroller consents to measure the supply voltage, avoiding the use of an analog pin. How is accurate this measurement? In this phase of the design I made a bad discovery: connecting several controllers to the same power supply, I had different...

Quick-n-Dirty Stock PSU Notes
Log from Monoprice Select Mini Electro-Mechanical Upgrades
The Big Ass Cap for input filtering is a Nippon Chemi-Con 400V 220 uF snap in cap. I wouldn't bother with pricing out a replacement...---------- more ----------The PSU has a small step down transformer to rectified DC voltage via a 4A, though unmarked...

feature creep vol. {n+=1}: doors
Log from Minamil 3dp: another minimal CNC mill
Another log mostly about already-dead stuff that I took pictures of before breaking it down to make it different again. I tried to make this vulnerable corner at least not super fragile. It turned out to be super not fragile. It will take a much harder...

Testing PWM with LED strips and N-FET construction
Log from RGB WIFI Dimmer
Today I tested the N-FET construction with small pieces of LED strips. With all four PWM channels, all of them have around 500Hz an can have any duty cycle. The main result of this test is, that I have to choose other values for the pull-up resistors....

Final testring and confirmation of MOD's THD-N at 1kHz
Log from Audio - Phono preamplifier boost
Final results of my Art DJPre-II MOD. As input I have used my handcrafted ultra low-distortion oscillator with almost immeasurable levels below 0.0004% THD+N, which had to be attenuated by -40dB. ART-DJPREII-mod2-THD_ for_1kHz(-40dB_Input_WBOscilator-LM4562-0.0004prcTHD).bmp...

Design challenge n.5: what type of balancing resistors?
Log from Green BMS
Most of the low cost passive smart bms that are on the market, in my opinion they all have one limit in common: low balancing currents, from 30mA to 100mA Anyone who has experience with lithium cells, especially with Lifepo4, knows that with use, the...

Death of Bicep n°2 on 12/01/2024
Log from Arm Day
It is with deep sadness and a heavy heart that we announce the tragic passing of Bicep Number 2. At 11:27 AM today, we lost a cherished and irreplaceable member of our community. Bicep Number 2 brought strength, support, and resilience to those who relied...

Design challenge n.1: system architecture and bus isolation
Log from Green BMS
The BMS I had in mind consisted of a cell module screwed directly to the poles. To make it smart I had to use a microcontroller. The best choice was to use an ATTiny Microcontroller ATTiny84A powered directly from the cell. For the control unit I immediately...

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