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minimal-hardware-7-segment-display
ATmega-based driver for a 7-segment display with latched 8-bit input and hex or decimal output
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
You may want to try a project using the ATmega328. This is the same chip that the Arduino uses, but you can program it directly without the Arduino libraries and IDE. The chip and the AVR ISP programmer are inexpensive and easy to get. You can breadboard a design and program it with a simple makefile. Once you have a design you like on the breadboard it can be spun into a PCB. Here is an example of a simple 328 project: https://github.com/TomNisbet/minimal-hardware-7-segment-display