Simple Z80 test design - single board with all the basics and a few luxuries.
**NOTE EasyEDA shows the most recent WIP for this project, which might be part way through me making changes. Before using the PCB layout please do get in touch (comment or message) so I can let you know if what you're seeing is stable! I create labelled versions of the project, but EasyEDA doesn't allow me to publish a...
Larger 4 digit Serial 7 Segment display which has capability of communicating through SPI / I2C / serial TTL inputs. Smaller version is basic display board with 0.56" display and LEDs for colon and Apos. Larger board is based on same basic design but it adds ports for DS1307/DS3132 RTC boards, ESP8266-01 or 12E/F, DHT11/22 enviromental sensor, LDR light sensor and extra status LED's. Unused pins f...
This is an arduino nano based soldering station. **Tested, working version.**
-Designed to work with rotary encoders.
-Built in Beeper.
-Built in memory buttons to store often used temperature values.
-Built in Debounceing for the buttons. (up to 7 buttons, built in 3 buttons)
-Designed to work with a MAX6675 module for temperature readings from a K-type thermocouple.
-Built in LCD head...
Experiment: Hermes-Lite2 connect to arduino on connector DB13
Bus: SDA2/SCL2, 312.5 Kb/s, 3.3V, HL2 side: 4.7kOhm pull up
I add 2x 1kOhm on the receiver side as pullup to have 4x current.
Arduino wire libary uses pins: https://www.arduino.cc/en/reference/wire
# I2C Controlled 2S-4S Brushless ESC
* *Five Via-In-Pad Myths*
* At first I was reluctant to have vias in the pads. This paper explains the do's and don'ts
So far I have not found an ESP development module which can be inserted to a socket sideways e.g. to save PCB footprint (for use in smaller enclosures) and to increase module density (e.g. in a HPC application / ESP cluster / multi-ESP configurations).
Here is one design I created (feel free to use/modify/improve/etc).
I wish that some day a manufacturer realizes its potential and creates a produc...
Breakout board for the Electronic Assembly eDIP240-7 display for control via an I²C interface.
- I²C addresses can be set via a dip switch.
- I²C pull-up resistors integrated.
- With reset button to avoid annoying plugging in and unplugging.
Use pin headers (2x 1x20) to be able to detach the display from the board
Multifunction USB to JTAG / UART / FIFO / SPI / I2C tool
Plugging a CJMCU FT232H board onto the Shukran creates an easy-to-use multi-function bus / device hacking and analysis tool with protected (current limited) 5V power pins, 3.3V power, spare pullup resistors and indicator LEDs, all for around $16/£12 total. The Shukran is designed to be assembled by anyone with moderate soldering skills; all...