Electronics
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Contents
Current Research
Things I'm Learning
Official Blog of Silicon Labs
- Control an accelerometer over I2C
- IoT Security
Resources
Ohms Law Calculator (& some other calculators...)
Resistance: 4 Band Colour Code Calculator
Capacitance: Conversion Calculator
Local Resources (as in... "Can I get parts without waiting for shipping?")
- Electrical & Electronic Supply Inc.
- Some stock of new parts
- Lots of stock of used/surplus parts
- Whole place is a hell of a mess...
- Forest City Surplus
- Some, very limited, supplies
- Hardcore Electronic Supply
- Very minimal stock so far...
PCB Manufacturers
Software
Electronics Design on Linux
gplEDA.org
DipTrace - Schematic and PCB Design Software
Fritzing
KiCad
Eagle
Tools
- O! M! G! Need an assembly turntable
- Details about ST-Link V2 Programming Unit mini STM8 STM32 Emulator Downloader M89 Top
- Details about USBasp USB ISP Programmer Adapter for ATMEL AVR S51 WIN7 VISTA AT89S51 AT89S52
- FT232RL FTDI USB To TTL Serial Converter Adapter Module For Arduino
- Authentic Nitecore UM20 Dual Slot Li-ion Battery Charger
- USB Voltage Current Meter Charger Doctor Tester 200mV 0-60 Degree
- DSO138
- Soldering Equipment
- Easing the pain of SWD on modern DPS:es
Homebrew
- AVR Parts Tester
- ESP32 and the CWTD ‘Test gadget’
- DC voltmeter test gadget
- Search: "Arduino based test equipment"
Power Supplies
- SEARCH: repurpose dell server psu
- rcgroups forum: How to convert Server Power Supplies
- rcgroups forum: My take on the HP server power supply.
- rcgroups forum: Dell A570P-00 & A570P-01 570W
- rcgroups forum: Dell PE6800 Power Supply’s powers 2 FMA Powerlab 8’s.Completed
- rcgroups forum: DPS-600pb ESP135 PSU voltage and fan control.
- rcgroups forum: Dell DPS-750TB-1 A (D750P-S0) pinout
Parts
Microcontrollers
-STS-
FPGA
Lattice
iCE40 Ultra Plus
Gnarly Grey UPDuino
Single Board Computers
High Voltage
- 50,000V High Voltage Power Supply
- Tesla Coil Projects
- ZVS Drivers
Robotics
Off-Grid
- A New & Improved Charge Controller Based on the 555 Chip
- A low-voltage disconnect for 12 volt lead acid and lithium batteries
- ARDUINO MPPT SOLAR CHARGE CONTROLLER (Version-3.0)
- DIY solar cell from scratch
...Projects...
How-To
Tips
Basic Circuits
- MOSFET as a Switch
- How to Build an N-Channel MOSFET Switch Circuit
- Using MOSFETS with TTL levels (5 Volt and 3.3 Volt)
PCB
- Cheap and Easy PCB Etching (ItKindaWorks video)
- Build Your Own PCB Chemical Tank
- Make your own Printed Circuit Board (Official Blog of Silicon Labs)
- How to Make PCB using Marker
- Dry Film
- Thermal Transfer
- Chinese PCB production
- Quickly Convert Bitmaps Into PCB Artwork
Knowledge
- Current Limiting Resistor Calculator for Leds
- Wire Guage
- Kelvin (4-wire) Resistance Measurement
- James Lewis - They're JUST Capacitors
- How to : Control Speed of Motor
- Some discussion about switching with MOSFETs & a bit about using LTSpice
- How to Build Your Own Discrete 4-Bit ALU
- Build Your Own Motor Driver
- Inspecting Electronic Circuits with an Audible Circuit Probe
- The Basics Behind Constant-Current LED Drive Circuitry
- How Lithium-Metal Doubles the Energy Density of Rechargeable Batteries
- Intro to Stepper Motors
- Uses of Different Soldering Iron Tips
- From Resistors to ICs Color Codes
- Measuring Resistances Less Than 1 Ohm
- w2aew #289: Back to Basics: Zener Diodes - How to Use | Applications | not all created equal
- Current Transformer Basics
Digital Logic
Truth Tables
| AND | NAND | |||||
| 0 | 0 | 0 | 0 | 0 | 1 | |
| 0 | 1 | 0 | 0 | 1 | 1 | |
| 1 | 0 | 0 | 1 | 0 | 1 | |
| 1 | 1 | 1 | 1 | 1 | 0 | |
| OR | NOR | |||||
| 0 | 0 | 0 | 0 | 0 | 1 | |
| 0 | 1 | 1 | 0 | 1 | 0 | |
| 1 | 0 | 1 | 1 | 0 | 0 | |
| 1 | 1 | 1 | 1 | 1 | 0 | |
| XOR | XNOR | |||||
| 0 | 0 | 0 | 0 | 0 | 1 | |
| 0 | 1 | 1 | 0 | 1 | 0 | |
| 1 | 0 | 1 | 1 | 0 | 0 | |
| 1 | 1 | 0 | 1 | 1 | 1 | |
Ideas
- Quick and Efficiently Wiring Your Prototype Circuit Board
- Using Transistor as a Switch
- 4-in-1 Arduino LCD Shield Kit
- 9V/1kV DC/DC converter
- A low-voltage disconnect for 12 volt lead acid and lithium batteries
YouTube
- #237: 4 Wire Resistance Measurement | Kelvin connection
- 4 wire kelvin resistance measurement tutorial
- Soldering Tool
- Wireless Module on Breadboard - NRF24L01+ and ESP8266
- Level Shifting Tutorial 5V-3.3V Quick and Dirty Methods
- How to Drive LEDs - Easy Constant Current Circuit
- How to protect circuits from reversed voltage polarity!
- 6 Ways to control Motors! Including with Arduino & Raspberry Pi! How To Tutorial from NYC CNC
- Salvaging Hall Effect Sensors and Neodymium Magnets - Build an RPM-meter
- #114 No contact mains detector for Arduino & Pi (just 10 components)
Reverse Engineered: 50p Electronic 555 Doorbell Kit (with schematic)
Schematic generated in Fritzing
Instructables
Caption1
- Is the best PCB etchant in every kitchen?
- Automatic Dark Detector
- How to Control a Nixie Tube with an Arduino
- Basic Electronic components
- Call Blocker / Telemarketer Stopper
- Simple Led driver/Constant-current source 20 mA
Interesting Products
-STS-
- Embedded PID Temperature Control
- Halogen Lamp Abused for Desoldering
- (Homebrew PCBs with Clive)
Finding data on old chips
- A high current power supply built around a server voltage regulator
- Direct PCB Printing with a Modified Laser Printer
- DIY Through Hole Plating of PCBs
LMT01 temperature sensor
Home Automation
Some How-Tos
- Reverse Engineering PCBs
- DIY Arduino Schematic - AddOhms #23
- How to Make Double Sided Circuit Boards at Home (Mr Carlson's Lab
- Applying and exposing dry film photoresist and building a PCB.
- 18650 Battery charger reverse polarity protection (Vince's thoughts blog)
- Lipo Charge/Boost/Protect board in 18650 cell holder format
Circuit information & Ideas
- SEARCH: 5v relay module circuit diagram active low
- SEARCH: active low transistor switch
- Preferred way of interfacing relay coil with active low output from MCU
- ECE 201L Circuit Analysis Laboratory - Lab 10 (digital logic input/output)
- The Engineering Projects (some useful information)
- Relay Switch Circuit
ETC
- Paper As a Substrate for Circuits
- Tinkermans blog
- various electronics projects
- He's into IoT...
