Lisa's Column

electronic sound and light sculpture

electronic sound and light sculpture

cwymriad is a ring modulation based sound sculpture which displays the output signal on an 8x16 LED matrix. DETAILS   'cwymriad' is based on a du...

A Small CNC bot

A Small CNC bot

Piccolo is an  opensource project , by Diatom Studio, which allows you to create a small CNC (working area about 5x5cm). I tried to make a copy; th...

Nixie Thermometer - Finished!

Nixie Thermometer - Finished!

Today I got the PCBS for the Nixie thermometer from PCBHERO: Here are the two sides of a PCB in detail: I started the assembly by soldering the c...

FP We make a Eachine H8 mini

FP We make a Eachine H8 mini

The  Eachine H8 mini quadcopter  is certainly one of the most popular mini quadcopters, both for the low price (10-15 €), and for the good  perform...

ESP32 lights

ESP32 lights

The project I am presenting to you today, ESP32lights , is a smart lighting control unit  based on the esp32 chip. Through ESP32lights it is possi...

OPTIMIZING PCB COMPONENT ORIENTATION

OPTIMIZING PCB COMPONENT ORIENTATION

With low-frequency circuits, PCB designers can place components on the board in almost any orientation they prefer. If while routing a part, a trac...

Teach you how to identify the true and false chips

Teach you how to identify the true and false chips

Some time ago, someone told us that debugging a circuit is a life-and-death situation, and suspected that a fake chip was bought. Today we will sha...

What are the precautions for a good SMT chip processing factory ?

What are the precautions for a good SMT chip processing factory ?

With the development of science and technology, many electronic products are developing in the direction of small and precise, making the size of m...

How to eliminate electromagnetic interference in PCB design?

How to eliminate electromagnetic interference in PCB design?

Anti-interference problem is a very important link in modern PCB design, it directly reflects the performance and reliability of the whole system. ...

How to reduce surface tension and viscosity in PCBA soldering process?

How to reduce surface tension and viscosity in PCBA soldering process?

Viscosity and surface tension are important properties of PCB A solder, and good PCBA solder should have low viscosity and surface tension when me...

How to Improve the Thermal Reliability of PCB Circuit Boards

How to Improve the Thermal Reliability of PCB Circuit Boards

In general, the distribution of copper foil on a pcb circuit board is very complex and difficult to model accurately. Therefore, it is necessary to...

How to Improve the Thermal Reliability of PCB Circuit Boards

How to Improve the Thermal Reliability of PCB Circuit Boards

In general, the distribution of copper foil on a pcb circuit board is very complex and difficult to model accurately. Therefore, it is necessary to...