Capacitive battery charger

Marcus Jenkins made a capacitive battery charger using Dirty Board PCB’s to revive rechargeable batteries: This is really a basic, bare-bones circuit. I’ve prepared the PCB with a view that it could be used as a module in a rather more-sophisticated charging system. You could imagine using a microcontroller (e.g. Arduino, PIC, etc.) to monitor […]

Using Altium for a DirtyPCBs order

Jarrett  has written an article describing a technique of using Altium for a DirtyPCBs order: This is a pretty rare combo: using a premium PCB package with the budget board house. Kinda funny. Generally these small run PCB houses provide DRU and CAM files for EAGLE design rule checking and Gerber outputs, respectively. Because I’m […]

C64/SX64 RAM Cartridge (SD2IEC part)

Sjaak designed and built a C64 RAM/ROM cartridge, which has a 6264 SRAM chip and an Atmel 644.  He did program an Atmega with a Bus Pirate: Today came in the Atmega644P’s in TQFP package I scored on eBay. Today I’m focusing on the SD2IEC part of the RAM cartridge. I was a bit scary to order […]

Lab LED constant current controller board

Ladvien blogged about his Lab LED constant current controller board project he made using DirtyBoard PCBs: A little lab controller PCB I’m working on. It centers around four high-power constant current circuits meant to be driven by an Atmega328’s PWM. I hate working on anything mechanical in dim light; comes from dropping parts down under […]

Souliss device ESP based combined with 3D Printing

Juan has been working on a Souliss device ESP based project, that is available at Github: With this board we can control 3 monocolor led strips (or 1 RGB), can host multiple sensors and options to come by external modules or internal conectors, Im working on this modules now. For now this board can host a […]

Making a PCB business card

Ilia Baranov has designed a reference business card: Back of card includes: Ruler in both 1/10″ and mm. AWG Hole size gauge (not super accurate due to plating, but that is unavoidable) Resistor/capacitor/inductor/diode sizes Common surface mount component sizes Common electrical symbols and shortcuts/equations Common conversions Trace size comparison Quote from Dune! Project info at Mr.Robot […]

Raspberry Pi and ARM uC Breakout + DirtyPCBs mini-review

hipfan75 writes: Briefly, it’s a Raspberry Pi v1, Model B, Rev2 breakout with an STM32F030 microcontroller connected to the Pi UART, with all GPIOs for both broken out. There are also connectors for an NRF24L01+ module, a 12V boost module, and 315/433 Mhz wireless transmitters. One board will serve as my Garage Door Controller, while […]

ESP8266 MQTT battery monitor project

Steve’s latest DirtyPCBs project, a wireless MQTT battery monitor: This board uses an ESP8266 (ESP12), a Texas Instruments INA226 I2C voltage and current monitor, and a Texas Instruments LMR12010X buck converter. This board is designed to wirelessly monitor 12 volt batteries and power supplies using an external current shunt resistor. The voltage across the shunt […]

WIFI Mains Power Dimmer / Switch with CBDBv2

 MAINS Power Dimmer / Switch Module project by Tracker J: Now it’s about time to talk also about what many of you has asked for: DIMMING! It’s a total different story, little bit complicated but, as you will see, not so hard to understand. General considerations: There are several types of dimmers generally available. These […]

Review: Dirty Circuits Done Dirt Cheap

DirtyPCBs detailed review by Gee_Rabid_Inventor:  Often design and research is and expensive business, especially when dealing with technology that your are unfamiliar with. A big proportion of this is PCB manufacture and I have spend a few years looking for a low cost reliable method for PCB production. The most cost effective method is to […]

DirtyPCBs based project: Isolated USB Serial Interface

Steve Rodgers just completed another project using a DirtyPCB order, an isolated USB serial interface, that is available at Github: Here is another project I just completed using a Dirty PCB order. It’s an isolated serial port using the CH340G chip and 4 Silicon Labs Si8410 digital isolators. Isolating the serial port ground from your […]

SoHa SMART first logo PCB design & manufacture

‏ @josephpcrabtree tweeted, “New learn-to-solder badges for @SoHaSMARTMaker. PCBs from @dangerousproto DirtyPCBs” This is a big day for any maker space when you learn to design and manufacture your own PCB. We are very proud of our circuit design and end result. We will use these in all of our Learn To Solder Classes going […]