Sign in to confirm you’re not a bot
This helps protect our community. Learn more
6502 Computer kit
$89.99
This kit includes the components for building the basic 6502 computer from my YouTube videos. Please note: This kit does not include an EEPROM programmer or a 5v power supply. You will need to purchase these separately or provide them yourself. Kit includes: 3 Breadboard (High quality BusBoard Prototype Systems BB830) 1 W65C02 CPU 1 W65C22 Versatile Interface Adapter 1 28C256 32k EEPROM 1 62256 32k SRAM 1 16x2 Yellow LCD panel (with pre-soldered pins) 1 74HC00 Quad 2-input NAND gate 1 1Mhz crystal oscillator can 8 Tact switch 10 Red LED 1 10k potentiometer (for LCD panel contrast) 10 220Ω resistors 10 1k resistors 10 0.1μF capacitor 40 20cm Jumper wires 1 Hookup wire: - 5 ft Red - 5 ft Black - 5 ft White - 5 ft Yellow - 10 ft Blue - 20 ft Green Note: Full assembly instructions are provided through the YouTube videos. There is no additional material included with the kit.
Complete 8-bit breadboard computer kit bundle
$299.96
Save $15.00 when you buy all four kits together! This set of 4 kits, along with my series of videos on YouTube will help you develop a deep understanding of how programmable CPUs really work. This bundle includes: Kit #1: Clock module Kit #2: Registers and ALU Kit #3: RAM and program counter Kit #4: Output and control logic See the descriptions for each kit for a complete list of parts included. Note: Full assembly instructions are provided through the YouTube videos. There is no additional material included with the kit.
Kit 1: Clock module
$39.99
This kit includes everything you need to build the clock module for the 8-bit breadboard computer, including the same high-quality breadboard I use in my videos and a power supply which will power the full computer. Unlike the later kits in the series, this first kit also includes pre-cut wires, making it easy for anyone to get started. Kit includes: 1 Breadboard (High quality BusBoard Prototype Systems BB830) 1 140-piece jumper wire kit 3 LM-555 Timer ICs 1 74LS04 Hex inverter 1 74LS08 Quad 2-input AND gate 1 74LS32 Quad 2-input OR gate 10 Yellow LEDs 5 Blue LEDs 1 Momentary tact switch 1 SPST slide switch 1 1MΩ potentiometer 5 220Ω resistors 5 1KΩ resistors 5 1MΩ resistors 5 0.01μF capacitors 5 0.1μF capacitors 5 1μF capacitors 5 10μF capacitors 1 10 watt AC-to-DC regulated switching wall adapter (US) 1 DC jack to screw terminal adapter for connecting power Note: Full assembly instructions are provided through the YouTube videos. There is no additional material included with the kit.
“World’s worst video card” kit
$139.99
This kit includes the components for re-creating the circuit from my "World's worst video card" videos. It also includes the additional components needed for connecting it to the 6502 computer kit. Please note: This kit does not include an EEPROM programmer. You will need to purchase one separately or provide it yourself. You also need to provide a VGA monitor. Kit includes: 5 BB830 Breadboard 1 10W AC-to-DC Regulated Switching Wall Adapter 1 2.1mm x 5.5mm Male DC Jack to Screw Terminal 1 Screw-terminal VGA connector 1 10 MHz Full Can Crystal Oscillator 6 74LS161 4-bit synchronous binary counter 4 74LS04 Hex inverter 8 74LS30 8-input NAND gate 3 74LS00 Quad NAND gate 1 28C256-15 EEPROM 10 Green LED 5 1.5k resistors 5 680Ω resistors 10 220Ω resistors 140 Assorted breadboard jumper wires (0.3" x90; 0.4" x40; 2" x20; red and black) 3 Hookup wire 22 AWG Solid 25 Foot Spool (1 ea Yellow, Green, and Blue) 3 74HCT245 Octal bus transceiver 1 74HCT74 Dual D-type flip-flop 1 74HCT08 Quad AND gate 1 40 Piece 30cm Male to Male Jumper Wires Reinforced Pin 22-26AWG The last 4 line items are used to connect to the 6502 computer project. Note: Full assembly instructions are provided through the YouTube videos. There is no additional material included with the kit.
6502 Serial interface kit
$29.99
This kit includes the additional components for adding an RS232 serial interface to the 6502 computer from my YouTube videos. Please note: This kit does not include a USB-to-RS232 adapter. If your computer doesn't have an RS-232 port (as most don't these days), you'll need one like this: USB-to-RS232. Kit includes: 1 W65C51 Asynchronous communications interface adapter (ACIA) 1 MAX232 RS-232 line driver/receiver 1 DB9F adapter 1 1.8432 MHz crystal oscillator 5 1uF MLCC capacitor 1 30pf capacitor 1 1M resistor Note: Full assembly instructions are provided through the YouTube videos. There is no additional material included with the kit.
Twos complement: Negative numbers in binary
27KLikes
1,318,347Views
2016Jul 10
How can we represent negative numbers in binary? There are several ways. This video compares using a sign bit, ones complement, and twos complement. Twos complement is the most commonly technique because it's relatively easy to implement in hardware and it makes addition and subtraction with negative numbers easy. Support me on Patreon:   / beneater  
How this content was made
Auto-dubbed
Audio tracks for some languages were automatically generated. Learn more
44 lessons
Building an 8-bit breadboard computer!
Ben Eater

Course progress

0 of 44 lessons complete

Follow along using the transcript.

Ben Eater

1.32M subscribers