The Unleashed Bluetooth module project's funding is ending in 3 days on Kickstarter. The Unleashed Bluetooth module can be helpful for time-lapses, long exposures, remote control, and geotagging:
"The Unleashed is the swiss army knife of camera accessories: It’s tiny, but packed with features. So much more than just a camera remote, it unleashes the full potential of your camera with expert level timelapse features, long exposure capabilities, geotagging and more - in a tiny Bluetooth module and an intuitive app that simply works."
Here are the Unleashed Bluetooth module features:
https://www.kickstarter.com/projects/foolography/unleashed-22?ref=5y29rj
Compatible cameras:
Sony Alpha: α7 IV, ZV-E10, α1, α7S III, ZV-1, α9 II, α6100, α6600, RX100 VII, α7R IV, RX0 II, α6400, RX100 VA, RX100 VI, α7 III, α7R III, RX10 IV, RX0, α9, α6500, α99 II
Fujifilm: GFX 100S, X-S10, X-T4, GFX 100, X-T3, X-H1, GFX 50S, X-T2, X-T1 IR, X-T1, IS Pro, S5 Pro
Panasonic Lumix: DC-GH6, DC-GH5 II, DC-S5, DC-S1H, DC-S1, DC-S1R, DC-GH5S, DC-G9, DC-GH5
Canon EOS: R3, R5, R6, 850D / Rebel T8i, 1D X Mark III, Ra, 90D, M6 Mark II, 250D / Rebel SL3 / Kiss X10, RP, R, 2000D / 1500D / Rebel T7 / Kiss X90, 4000D, 6D Mark II, 200D / Rebel SL2 / Kiss X9, 77D / 9000D, 800D / Rebel T7i / Kiss X9i, 5D Mark IV, 1300D / Rebel T6, 80D, 1D X Mark II, 5Ds, 5Ds R, 760D / Rebel T6s / 8000D, 750D / Rebel T6i / Kiss X8i, 7D Mark II, 1200D / Rebel T5 / Kiss X70, 70D, 100D / Rebel SL1, 700D / Rebel T5i / Kiss X7i, 6D, 650D / Rebel T4i / Kiss X6i, 1D C, 60Da, 5D Mark III, 1D X, 600D / Rebel T3i / Kiss X5, 1100D / Rebel T3 / Kiss X50, 60D, 550D / Rebel T2i / Kiss X4, 1D Mark IV, 7D, 500D / Rebel T1i / Kiss X3, 5D Mark II, 50D
Nikon: Z9, Z fc, Z7 II, Z6 II, Z5, D780, Z50, D6, D3500, Z7, Z6, D850, D7500, D5600, D3400, D5, D500, D7200, D810A, D5500, D750, D810, D4s, D3300, Df, D5300 , D610, D7100, D5200, D600, D3200, D800, D800E, D4, D5100, D7000, D3100, D3S, D300S, D5000, D3X, D90, D700, D3, D300, D2Xs, D200, D2Hs, D2X, D2H. With reduced features: D1X, D1H, D1, Coolpix P1000, Coolpix P950, Coolpix A, P7700, P7800, F6, F100, F5, F90X/N90s, F90/N90 - That’s right, we even support 5 different film or "analogue" cameras!
Unleashed Bluetooth module app screenshots: