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Bought a few of these on AliExpress a couple of years ago (before the chip shortage): https://www.aliexpress.com/item/32965114958.html
Oh, the price looks decent there and shipping does not increase when increased quantity. I never got those before since they were always relatively expensive (~$10 plus ~$4-5 shipping when other 52832 boards were $4 and 52840 dongle was for $6) but they look cheap now from this seller, no nfc or piezo though.
fanoush
@parasquid
What I did find work well is this one: http://www.radioland-china.com/1730323-1730323_2575611.html
Bought a few of these on AliExpress a couple of years ago (before the chip shortage): https://www.aliexpress.com/item/32965114958.html
Someone wrote custom firmware for this beacon (not Espruino): https://github.com/an-erd/ble_beacon