Okdo micro:bit next gen School Bundle-1 OKDO NANO C100 DEVELOPER KIT OKDO ROCK 4 SE CASE OKDO ROCK 4C+ CASE OKDOBPRK OKDX-T/20-W12-001-C OKDX-T/25-W12-001-C OKDX-T/25-W12E-001-C OKDX-T/40-W12-001-C OKDX-T/50-W12-001-C