If the equipment used in electronic circuit experiments can be controlled by Python, various experiments and tests can be automated, which is convenient. So, I searched for a DC power supply that can be controlled by Python.

Summary --If the product supports VISA / SCPI protocol, it can be controlled by Python. --Rigol and Siglent products are good at cheap places

reference

Standards

GPIB (IEEE-488.2) --Old standard, cable is surprisingly thick
RS232 --Old standard, USB conversion is possible, but it is troublesome
LAN --Convenient when controlling a large amount or when there is a distance
USB --Easy
- Using Linux to Control USB Instruments
  - http://literature.cdn.keysight.com/litweb/pdf/5989-6718EN.pdf --USB measuring instrument control tutorial
  - http://www.ni.com/tutorial/4478/ja/
SCPI
- OSS
  - https://github.com/j123b567/scpi-parser
  - https://github.com/MightyPork/scpi_parser
- Guide
  - https://en.wikipedia.org/wiki/Standard_Commands_for_Programmable_Instruments
  - https://manual.kikusui.co.jp/P/PLZ4W/i_f_manual/japanese/PLZ_COM_LIST.pdf
  - https://www.keysight.com/main/editorial.jspx%3Fcc%3DJP%26lc%3Djpn%26ckey%3D2304680%26id%3D...Part0?&cc=JP&lc=jpn --High-level API used for communication using the VISA measurement control bus
- OSS
  - PyVISA https://github.com/pyvisa/pyvisa
  - GPIB-pyvisa https://github.com/MarkDing/GPIB-pyvisa
  - DCPS https://github.com/sgoadhouse/dcps
- Guide --Device control using VISA / SCPI on Linux + Python - https://heptech.wpblog.jp/2019/12/05/contol_devices_via_visa-scpi_with_python_on_linux/

Programmable DC power supply product

Siglent Technologies
- https://siglent.jp/sl/about-siglent-2/
- SPD1000X,(SPD1168X, SPD1305X)
  - https://siglent.jp/sl/spd1000x/
  - I/F: USB,LAN
  - Protocol: SCPI
- SPD3303X-E
  - https://siglent.jp/sl/spd3303x-spd3303x-e/
  - I/F: USB,LAN
  - Protocol: SCPI
  - OSS
    - https://github.com/Kurokesu/siglent_psu_api
Rigol
- https://www.rigolna.com/
- DP700
  - I/F:RS232
- DP800, DP832A DC Power Supply
  - I/F:RS232, USB, LAN
  - Protocol: SCPI
  - OSS
    - https://github.com/sgoadhouse/dcps
    - https://github.com/kearneylackas/DP832-Python
    - https://www.eevblog.com/forum/testgear/controlling-rigol-dp832a-psu-with-python/
Keysight(Agilent) --E3631A Triple output DC power supply (discontinued) - http://literature.cdn.keysight.com/litweb/pdf/E3631-90413.pdf - I/F:RS232, GPIB - Protocol: SCPI
OWON
- 1CH Liner DC Power Supply (P4305,P4603)
  - http://www.owon.com.hk/products_owon_1ch_liner_dc_power_supply
  - I/F: RS232
  - Protocol: SCPI --Kikusui --Matsusada
- P4K-80
  - I/F: USB,LAN,RS232,RS485,GPIB
  - Protocol: ？
KORAD
- KA3005P
  - I/F:USB
  - Protocol: ?
  - OSS
    - https://github.com/starforgelabs/py-korad-serial
    - https://github.com/vb0/korad