I’m gonna start this video with a question, do you agree that technological advancements as well as market demand for technology is making our hobby nicer and more accessible by providing us with parts and tools that are cheaper and easier to get now than ever before. That’s how I feel when as a hobbyist … Continue reading How To Interface A GC9A01 Round Display With Arduino & ESP32 – Voltlog #349
Welcome to a new InTheMail, the series that will touch both your passion for electronics and your bank account at the same time. I’m gonna start with this little board which is an ethernet shield type of module which can bring TCP/IP connectivity to your project via a SPI bus. So this could mean any … Continue reading InTheMail | Voltlog #363
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header. This is an error on which I have spent long hours trying to figure out what’s causing it and how to fix it. If you are struggling with the same error on Windows, stick with me, I’ll show you how … Continue reading A fatal error occurred: Failed to connect to ESP32 – Voltlog #357
Welcome to a new Voltlog, today I’m gonna talk a bit about my process of switching from EagleCad to Kicad. So i’ve been an EagleCAD user for years, I’ve practically learned how to do pcb layout in eagle cad so there is that emotional attachment to a piece of software because it’s what I used … Continue reading Voltlog #287 – Switching From Eagle To Kicad
Welcome to a new voltlog, today we’re going to be talking about this little board which I designed and assembled myself, it’s a breakout module for the FTDI FT232H which is a usb to serial converter but with a nice twist. This particular chip from FTDI has the built-in Multi-Protocol Synchronous Serial Engine (MPSSE short) … Continue reading Voltlog #265 – FT232H USB to JTAG/I2C/SPI Interface With Python & PyFtdi
Welcome to a new Voltlog today we are taking a closer look at this inexpensive speech synthesis module. The part number is XFS5152CE and we do find a datasheet for this chip but unfortunately it is all in Chinese. The datasheet contains schematic examples, they show you how to wire a microphone pre-amp, how to … Continue reading Voltlog #171 – XFS5152CE Speech Synthesis Module Example Project
Here is a list with all the items shown in the video: LJC18A3-H-Z/BX Proximity Sensor: Aliexpress, Ebay. Fotek PL-05N Proximity Sensor: Aliexpress, Ebay. WQDQ SN04-N Proximity Sensor: Aliexpress, Banggood, Ebay. DD05CVSA charger + step-up dc-dc module: Ebay. Digispark Tiny85 Module: Banggood, Ebay. Arduino Nano: Banggood, Ebay. JM-OP13 Metal Spudger: Ebay, Banggood. Cheap precision knife: Aliexpress. MicroSD … Continue reading Voltlog #153 – InTheMail
Last InTheMail video was published almost two months ago so I think you will appreciate this one where I got some interesting stuff from the usual Chinese sources. Links for all the items shown in this video below: Hex shank drill bits set O-ring tool pick set Cheap T2 screwdriver iFixit 64 Bit Screwdriver Set … Continue reading Voltlog #130 – InTheMail
Welcome to a new voltlog, today we are going to answer the question how fast can you update an e-paper display, is it suitable to display live updating values from a sensor for example? Some people asked these questions in the comments of previous videos so I am doing some tests to try and answer … Continue reading Voltlog #126 – How fast can you update an e-paper display?
In this video I’m gonna show you how to load a custom image on the e-paper display. Let’s see how easy it is to get started working with one of these e-paper display modules and an Arduino board. Link e-paper display black/white: Banggood Ebay Aliexpress More resources below: Link epaper black/red/white. Wikipedia on e-paper display … Continue reading Voltlog #124 – Getting Started With E-Paper Display Module