diff --git a/ToDo.md b/ToDo.md
index 04afda8..2ddf98c 100644
--- a/ToDo.md
+++ b/ToDo.md
@@ -9,6 +9,7 @@
      - [ ] what kind of SW?
 - [ ] battery + loading circuit
 - [ ] NFC reader (ISO 14443-3A) (NXP-NTAG216) (888 Bytes needed!)
+	- [ ] [NXP PN532](https://de.aliexpress.com/item/32884787583.html)
 - [ ] internet access (wifi? gsm? tethering via BT?)
 - [ ] D-Pad: 18x18mm (6mm wide)