ESD保護をツェナーダイオードでする？
ESD：Electro-Static Discharge
- https://detail-infomation.com/zener-diode-shunt-regulator-design/
- http://www.protekdevices.com/xyz/documents/kb/tech/ta1001.pdf
Transient Voltage Suppression Diodes TVS diodes are designed and characterized for transient voltage suppression, while Zener diodes are designed and specified for voltage regulafion. Longer duration pulses can be suppressed by the TVS diode by increasing the die size and head dissipation.
expectを使う
Raspberry piのケース検討
ppaの削除
- 追加した ppa のリポジトリをリストから削除する方法 - Qiita
sudo add-apt-repository --remove ppa:shantzu/clipit
GNU Radioのversion
- c++ - GNU Radio version - Stack Overflow
$ gnuradio-companion --version
PSAT2, SSTV
- PSAT2 Page
- PSAT-2 Digital Voice/Satellite - 素人のサテライトと仲間達
progress of the weekend :
— ＦＧ８ＯＪ🏝️🛰️🌑 (@FG8OJ) July 8, 2019
- XQuad VHF antenna is up and working,
- APRS working on PSAT2/ISS with direwolf on IC-9700,
- Raspberry PI sat/moon tracker developpment still in progress : passes cron working, web dynamic page of #amsat is up, basic rotator control working. pic.twitter.com/JhFXMI1OY2
Javaのversion
[mobile@localhost ~]$ echo $JAVA_HOME /usr/java/jdk1.5.0_11
