- November 2020
- October 2020
- September 2020
- Introduction of GNSS receiver NovAtel OEM729
- Attaching GNSS external antenna connector to Sony Spresense
- Quasi-zenith satellite CLAS augmentation information extraction using Allystar HD9310 Option C
- Azimuth determination of installing survey grade GNSS antenna
- LED alarm light using Raspberry Pi Zero WH
- August 2020
- July 2020
- June 2020
- May 2020
- Quasi-zenith satellite Michibiki's positioning library CLASLIB (Part 3 VRS-RTK positioning by ssr2obs)
- Confirmation of SBAS signal over Hiroshima
- Quasi-zenith satellite Michibiki's positioning library CLASLIB (Part 2 ssr2osr)
- Quasi-zenith satellite Michibiki's positioning library CLASLIB (Part 1 Understanding the configuration)
- April 2020
- March 2020
- Parametric speaker experiment
- Four DC/DC converter experiments
- AC power control by solid state relay
- Microcomputers I use
- Observation of optical spectrum using microspectrometer C12880MA and Analog Discovery 2
- Battery charging with BQ25890, a Texas Instruments' IC
- Remaining capacity estimation of Lithium-ion battery using Maxim MAX17201
- February 2020
- January 2020
- December 2019
- November 2019
- Powering to Latte Panda with JST PH 4P connector
- QZSS's Disaster and Crises Management Report signal reception with Spresense, a Sony's board microcomputer
- Experiment of Allystar HD9310
- Upgrade of RTK reference station antenna
- Exhibit at Hiroshima IT Exhibition 2019
- Presentation at technical committee of IEICE Communication Systems at Kirishima
- October 2019
- September 2019
- August 2019
- July 2019
- June 2019
- May 2019
- March 2019
- February 2019
- January 2019
- December 2018
- November 2018
- October 2018
- September 2018
- August 2018
- Experiment on block chain with temperature and humidity data
- Let's try RTK of several centimeter order positioning with an internet-connected PC
- How to make an RTK reference station
- Deep Sleep Mode on ESP-WROOM-32
- GRUB trouble on Linux after partition movement
- Use of Sigfox with Una Shiled V2S
- Panorama photo of RTK reference station at Hiroshima City University (PC only)
- July 2018
- June 2018
- March 2018
- January 2018
- November 2016
- October 2016