3 in a row/UPDI (Newer Emisar, Sofirn, Wurkkos)¶

Newer lights from Emisar, Sofirn and Wurkkos have a 3-pin UPDI serial interface. These lights typically use either an avr32dd20 or attiny1616 chip.

Models using this interface include the Emisar D3AA, Sofirn SC10 Pro, Wurkkos TS10, and later revisions of the Sofirn LT1, Q8 Pro, SP36, and more.

../_images/flashing_pads_updi.png — 3 Pin UPDI Flashing Pads¶

Tip

Check the labels on the pads in the light for the proper orientation, the Sofirn SP10 Pro has the pads in the opposite order from the Wurkkos TS10, so when connecting a probe to one of those lights, invert either the probe or the light head.

Warning

Be careful with the pad order, not all lights use the same order. For example some SP36 versions made in Late 2022/Early 2023 have three pads but not in the above order.

One or more of the pads may include an alignment hole to help guide pogo pins on the probe.

../_images/updi-d3aa.jpg — 3 Pin UPDI Flashing Pads on Emisar D3AA¶

../_images/updi-ts10.jpg — 3 Pin UPDI Flashing Pads on Wurkkos TS10¶

2+1 out of 6 (Sofirn SC21)¶

At least one light out there, the Sofirn SC21 Pro, has a 6 pad layout where only 3 of the pads are used. This, like the 3-pin layout above, is a UPDI serial interface.

../_images/flashing_pads_sc21.png — 2+1 out of 6 UPDI Flashing Pads¶

Unfortunately, the three pins used are not together and the spacing makes interfacing with the pads tricky. This light also uses an attiny1616 chip.