DuWayne posted an update on his test gadget project we covered previously: The picture shows the completed DCVM test gadget in 4 channel mode measuring the 3 voltages present on the headers used to connect the individual test gadgets. I was running this off of the PC without the 12 volts connected for external power, […]
Tag Archives: testing
Playing with a surplus E-ink module
Sjaak @ smdprutser.nl writes: When I was in China last year I sourced a couple of small E-ink displays (GDEH0124S01) through Taobao. They were simple ones with 8 14 segment characters. After some searching on the Chinese website from the manufacturer I found the datasheet. It was by all means not complete and a lot […]
Testing the Shinyei PPD42NS
From the comments on our Arduino dust sensor post, KH writes: The sensor can obviously measure dust concentrations, it also has to be placed and set up properly, and it gives useful readings. For hobby users like most of us, obviously calibration to specific or absolute standards will be almost impossible. More details at Darell […]
Testing the new reduced-sized ICSP connector
This week we received a batch of PCBs and amongst them was the latest revision of our USB TFT breakoutboard. This board is the first board that features a new ICSP footprint, which occupies less space on the PCB and should improve testing and programming times at Seeed.
Test buffer logic for Bus Blaster v3
A test buffer for the CPLD on the experimental Bus Blaster v3 is now available in the forum. The self test passed, but it needs more real-world testing. If you built a Bus Blaster v3 free PCB please give it a try and report how it went. Bus Blaster v3 is a small update to […]
Dangerous DSO part 5: Testing and conclusions
It’s the last day of our week-long Dangerous DSO adventure. Yesterday we simulated the analog front-end and found a few changes to test. First, we’re going to increase the ADC buffer gain to 2. That should make vertical offset adjustment easier. Second, we’re going to try a more refined input range divider with a 900K […]
Bus Pirate v4 hardware self-test
Bus Pirate v4 just passed the hardware self-test. A test firmware will be available soon. So far we’ve implemented: USB connection Main IO pins Hardware I2C On-board EEPROM, with I2C edit mode v4 hardware self-test Function button Extra axillary pins New LEDs Next we’re going to address a bug in the pull-up voltage select circuit. […]
Bus Pirate v4 firmware alpha – alive!
Bus Pirate v4 is alive! Bus Pirate firmware v5.9 is running on the new Bus Pirate v4 hardware with direct PIC-based USB connection. It started out slow because USB support is hacked into replacements for the existing serial port functions, but the latest SVN version is working great. BPv4 doesn’t pass the self-test yet, but […]