Programmable Voltage Reference 5 Volt Ver. 3.14
author: Barbouri
2 layer board of 3.15 x 1.92 inches (80.0 x 48.8 mm)
Uploaded:
January 13, 2022
Shared:
March 30, 2022
Total Price:
$30.20
Programmable Voltage Reference 0.001 to 5.000 Volt - Version 3.14
The Programmable Voltage Reference (PVR) has a range of 1 mV to 5.000 volts in 1 mV steps. The accuracy is plus or minus 50 uV for any set value. The reference value is displayed on a 2 X 16 character OLED display and can be set manually using the rotary encoder, toggle switch, or remotely over the TTL serial to isolated USB 2.0 port.
https://www.barbouri.com/2022/03/29/updating-the-programmable-voltage-reference-project/ 
Front panel with display view
Circuit board “After Dark” service, top view
Programmable Voltage Reference 0.001 to 5.000 Volt - Version 3.14
The Programmable Voltage Reference (PVR) has a range of 1 mV to 5.000 volts in 1 mV steps. The accuracy is plus or minus 50 uV for any set value. The reference value is displayed on a 2 X 16 character OLED display and can be set manually using the rotary encoder, toggle switch, or remotely over the TTL serial to isolated USB 2.0 port.
https://www.barbouri.com/2022/03/29/updating-the-programmable-voltage-reference-project/
Front panel with display view
Circuit board “After Dark” service, top view
