diff --git a/datasheets/.gitkeep b/datasheets/.gitkeep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/datasheets/1N5817_5819.pdf b/datasheets/1N5817_5819.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..38de22eaee8842866739d7fd48ead65ab900b32d
Binary files /dev/null and b/datasheets/1N5817_5819.pdf differ
diff --git a/datasheets/ENG_DS_OJS_10A_0422-2400014.pdf b/datasheets/ENG_DS_OJS_10A_0422-2400014.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..3ee3ccdfa914b83cf30191ee06576b593a8901c4
Binary files /dev/null and b/datasheets/ENG_DS_OJS_10A_0422-2400014.pdf differ
diff --git a/datasheets/Nodemcu-esp-c3-32s-kit-schematics.pdf b/datasheets/Nodemcu-esp-c3-32s-kit-schematics.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..610fc474181f0b61433ec77a01e6c8dbebf60b87
Binary files /dev/null and b/datasheets/Nodemcu-esp-c3-32s-kit-schematics.pdf differ
diff --git a/datasheets/esp32-c3_datasheet_en.pdf b/datasheets/esp32-c3_datasheet_en.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..981210b91b24c1042c851cc50f2fc56a105d5f19
Binary files /dev/null and b/datasheets/esp32-c3_datasheet_en.pdf differ
diff --git a/datasheets/ne555.pdf b/datasheets/ne555.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..d7c721834d72a9448f16c3198549cc06c25fa0a6
Binary files /dev/null and b/datasheets/ne555.pdf differ