Miniscope v2f

Extremely cheap low-speed PC/USB oscilloscope with STM32 (STM32F042) microcontroller – variant of miniscope v2e with input amplifier (MCP6S21 PGA) added. This is minor update, but input PGA fixes problem with input leakage of STM32F042 allowing increasing input impedance at the same time.

Miniscope v2f

Quick specification

  • follows miniscope v2a-d idea: very simple device streaming data in real time to PC; DLL and GUI (Win32) are handling all the functionality,
  • sampling: 480 kSps, 8 bit, streaming via USB FS with libusb (32/64bit) used as driver,
  • 8 voltage ranges (0..30V, 15V, 7.5V, 6V, 3.75V, 3V, 1.87V, 0.94V – PGA x1, x2, x4, x5, x8, x10, x16 and x32 respectively),
  • input resistance: 1MOhm,
  • noise: ~23mVpp (visible at two gain ranges with high sensitivity),
  • record length: 4k to 1M defined in DLL (single screen); up to 512M samples (continuous!) when recording to file,
  • firmware loading via USB (DFU bootloader embedded in ROM),
  • low component count: MCU, voltage regulator, mini-USB and few passive SMD components on single-sided PCB.


Retail prices are from my local distributor, YMMV but listed prices are rather in top range.

  • STM32F042Fx (MCU): $2 retail, $1 volume
  • MCP6S21 (PGA): $1.40 retail, $0.80 volume
  • MCP1700 (voltage regulator): $0.50 retail
  • mini-USB socket: $0.55 retail
  • other: < $2

For More Details: Miniscope v2f

This Post / Project can also be found using search terms:

  • https://yandex ru/clck/jsredir?from=yandex ru;search;web;;&text=&etext=1827 PJzBWwNApGxe0wHe9JUmY5sSrYVGWXBA–lQYJtKXaP64tF6MyHO2BVGWulN7nfZ 8c1afa5c8d7e57fba6c4a2b35b9cecdd659b5328&uuid=&state=_BLhILn4SxNIvvL0W45KSic66uCIg23qh8iRG98qeIXme
  • https://yandex ru/clck/jsredir?from=yandex ru;search;web;;&text=&etext=1833 veOMl_POQInntPY57c1NXnrKVhuECdksckYwU-gmMMwWWk2JrekLlmIm4_UngsUx 8b0d3873c99e97c7401d64e8270ce7b088033da7&uuid=&state=_BLhILn4SxNIvvL0W45KSic66uCIg23qh8iRG98qeIXme
READ  CH3330N – Small and Cheap USB-Serial Converter IC Needs No Crystal

Leave a Comment

= 4 + 9

(Spamcheck Enabled)

Read previous post:
Long Distance Remote Light Sensor With RFM95W-RFM98W LoRa
Long Distance Remote Light Sensor With RFM95W/RFM98W LoRa

There are many wireless communication options when connecting Arduino boards. One of the most popular ones is the Wi-Fi. It...

Scroll to top