# ユーティリティ関数

- [Printf utils](/v0.1.9/api-reference/functions-1/utility/printf-utils.md)
- [pack\_bits()](/v0.1.9/api-reference/functions-1/utility/pack_bits.md)
- [collect\_bits()](/v0.1.9/api-reference/functions-1/utility/collect_bits.md)
- [Byte array utils](/v0.1.9/api-reference/functions-1/utility/byte-array-utils.md)
- [pack\_bytes()](/v0.1.9/api-reference/functions-1/utility/pack_bytes.md)
- [expand\_bytes()](/v0.1.9/api-reference/functions-1/utility/expand_bytes.md)
- [CRC8, XOR, LRC](/v0.1.9/api-reference/functions-1/utility/aaa.md)
- [div100()](/v0.1.9/api-reference/functions-1/utility/div100.md)
- [Scale utils](/v0.1.9/api-reference/functions-1/utility/scale-utils.md)