Repairing a failed Tecsun S-8800 radio due to damaged charging board
In June, my Tecsun S-8800 which was purchased in Feb 2020 stopped working totally. It had started 2 months earlier
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Hardware
dsMP3, my LW/MW/FM/SW radio with MP3 recording/playback [Part 2 – Firmware Design]
In my previous post I described how I designed my home-built LW/MW/FM/SW radio which supports MP3 recording/playback using the dsPIC33EP512MC502
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dsMP3, my LW/MW/FM/SW radio with MP3 recording/playback [Part 1 – Hardware Design]
Wondering why even high-end multiband radios such as Tecsun H501 or PL990 do not support recording, I decided to build
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Integrating FatFs FAT filesystem module with CH375/CH376 USB controller
In a recent embedded project, I need to access data stored on a USB thumb drive using a dsPIC33EP512MC502. As
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Rigol DS1054Z, GW-INSTEK GDS1054B and Hantek DSO4084C digital oscilloscopes
Over a period of five years I have bought myself three low-end modern digital oscilloscopes, the Rigol DS1054Z, GW-INSTEK GDS1054B
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Grundig GV509M, Panasonic NV-FJ625 and Phillips VR 330 VCR/VHS Player/Recorder
In my store room I have a collection of three VCRs, Panasonic NV-FJ625, Phillips VR 330 and Grundig GV509M. The
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Emulating EEPROM using flash memory on dsPIC33EP512MC502
One thing I don’t like about the dsPICEE3P (and the PIC32MX) lines is that these devices do not have EEPROM
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Fujitsu Siemens FSC Futro S210 thin client
I got from eBay a FSC Futro S210 thin client, which can support up to 512MB RAM, 32GB CompactFlash card
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Powering off a computer using ACPI from DOS
By default, DOS does not come with a command to shut down or power off the computer. Back in the
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HP Compaq NC6120 laptop, the king of ports, a must-have for retrocomputing enthusiasts
In an attempt to find a laptop which has a parallel port but is modern enough to run Windows 7,
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Vintage oscilloscopes to the test: Hitachi VC-6025, GW-INSTEK GOS-6103 and Kenwood CS-5275
After having fun with the VFO4351A 140MHz~4.4GHz RF signal generator on my Rigol and Hantek oscilloscopes, I decided to do
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VFO4351A 140MHz~4.4GHz RF signal generator based on ATMEGA 8A and ADF4351
To replace my aging and bulky National Panasonic VP-8177A function generator, I bought the VFO4351A 140MHz~4.4GHz RF signal generator module from
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Software Real Time Clock (RTC) for the dsPIC33EP512MC502
Although the dsPIC33EP512MC502 does not have an integrated Real Time Clock (RTC) for time keeping, this can easily be overcome by configuring
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16-bit stereo audio DAC on dsPIC33FJ128GP802
The dsPIC33FJ128GP802 is among the few devices in the dsPIC33F family that have an integrated 16-bit stereo DAC module. The DAC can be
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Measuring temperature using the dsPIC Charge Time Measurement Unit (CTMU)
In an attempt to save an I/O pin originally used for the DHT11 to measure ambient temperature in one of my
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