Good news: With the Dust sensor on EggBus channel 2 and VOC/O3 on EggBus Channel 1, everything is polling.
Bad news: everything other than DHT22 is reporting weird values:
From the PollEggBus_EPA.ino:
9175, NO2, 123592408.00000000, ppb, ovf
9363, CO, ovf, ppb, ovf
9568, O3, 371793184.00000000, ppb, ovf
9780, VOC, ovf, ppm, ovf
9994, Dust, ovf, pcs/283ml, ovf
10087, Humidity, 57.70000076, %, n/a
12860, Temperature, 21.80000114, degrees C, n/a
And from the PollEggBus.ino:
===========================
Egg Bus Address: 0x3
Firmware Version: 16
Sensor Address: 00:04:A3:37:DF:5C
---------------------------
Sensor Index: 0
Sensor Type: NO2
Table X Scaler: 0.40000000
Table Y Scaler: 1.70000004
R0: 2200
Resistance: ovf
R/R0: 55778796.000
Table Row 1: [62, 117] => [24.80000114, 198.90000915]
Table Row 2: [75, 131] => [30.00000000, 222.70001220]
Table Row 3: [101, 152] => [40.40000152, 258.39999389]
Table Row 4: [149, 188] => [59.60000228, 319.60000610]
Table Row 5: [174, 204] => [69.59999847, 346.80001831]
Table Row 6: [199, 219] => [79.59999847, 372.30001831]
Table Row 7: [223, 233] => [89.20000457, 396.10000610]
Table Row 8: [247, 246] => [98.80000305, 418.20001220]
Sensor Value: 128407688.0000000000
Sensor Units: ppb
---------------------------
Sensor Index: 1
Sensor Type: CO
Table X Scaler: 0.00300000
Table Y Scaler: 165.00000000
R0: 750000
Resistance: ovf
R/R0: 711901.875
Table Row 1: [134, 250] => [0.40199999, 41250.00000000]
Table Row 2: [168, 125] => [0.50399999, 20625.00000000]
Table Row 3: [202, 49] => [0.60599999, 8085.00000000]
Table Row 4: [232, 12] => [0.69600000, 1980.00000000]
Table Row 5: [241, 6] => [0.72300000, 990.00000000]
Sensor Value: ovf
Sensor Units: ppb
===========================
Egg Bus Address: 0x4
Firmware Version: 16
Sensor Address: 00:04:A3:37:BD:04
---------------------------
Sensor Index: 0
Sensor Type: O3
Table X Scaler: 0.01500000
Table Y Scaler: 1.35000002
R0: 11007
Resistance: ovf
R/R0: 17092974.000
Table Row 1: [4, 7] => [0.06000000, 9.44999980]
Table Row 2: [5, 9] => [0.07500000, 12.15000057]
Table Row 3: [6, 10] => [0.09000000, 13.50000000]
Table Row 4: [7, 11] => [0.10500000, 14.85000038]
Table Row 5: [13, 18] => [0.19499999, 24.30000114]
Table Row 6: [20, 25] => [0.29999998, 33.75000000]
Table Row 7: [27, 32] => [0.40500001, 43.20000076]
Table Row 8: [34, 39] => [0.50999999, 52.65000152]
Table Row 9: [40, 46] => [0.59999995, 62.10000228]
Table Row 10: [47, 52] => [0.70499997, 70.20000457]
Table Row 11: [54, 60] => [0.81000003, 81.00000000]
Table Row 12: [60, 66] => [0.90000000, 89.09999847]
Table Row 13: [68, 74] => [1.01999998, 99.90000152]
Table Row 14: [135, 155] => [2.02499985, 209.25000000]
Table Row 15: [201, 247] => [3.01499986, 333.45001220]
Sensor Value: 2144391424.0000000000
Sensor Units: ppb
===========================
Egg Bus Address: 0x5
Firmware Version: 16
Sensor Address: 00:04:A3:37:BE:06
---------------------------
Sensor Index: 0
Sensor Type: VOC
Table X Scaler: 0.00051000
Table Y Scaler: 1.60000000
R0: 500000
Resistance: ovf
R/R0: 1935094.875
Table Row 1: [254, 19] => [0.12953999, 30.39999961]
Table Row 2: [195, 29] => [0.09945000, 46.40000152]
Table Row 3: [157, 43] => [0.08007000, 68.80000305]
Table Row 4: [136, 54] => [0.06936000, 86.40000152]
Table Row 5: [117, 68] => [0.05967000, 108.80000305]
Table Row 6: [97, 94] => [0.04947000, 150.40000915]
Table Row 7: [78, 136] => [0.03978000, 217.60000610]
Table Row 8: [58, 221] => [0.02958000, 353.60000610]
Table Row 9: [53, 254] => [0.02703000, 406.39999389]
Sensor Value: ovf
Sensor Units: ppm
From the AQECalibrate sketch:
Discovered Sensors
====================================================================
ID Sensor R0
--------------------------------------------------------------------
1: NO2 [ 2200 ]
2: CO [ 750000 ]
3: O3 [ 11007 ]
4: VOC [ 500000 ]
5: Dust [ 1000 ]
====================================================================
Enter ID Number to Calibrate [1..5]: 1
Calibrating Sensor ID: 1Hit space then Enter to stop
====================================================================
time Val Min Max Span Mean LSE ppm
--------------------------------------------------------------------
9 NO2: 0 0 0 0 0 0 147572976.00
11 NO2: 0 0 0 0 0 0 131831888.00
12 NO2: 0 0 0 0 0 0 128407688.00
13 NO2: 0 0 0 0 0 0 126761440.00
14 NO2: 0 0 0 0 0 0 126761440.00
15 NO2: 0 0 0 0 0 0 125156856.00
---
Calibrating Sensor ID: 2Hit space then Enter to stop
====================================================================
time Val Min Max Span Mean LSE ppm
--------------------------------------------------------------------
1 CO: 0 0 0 0 0 0 ovf
2 CO: 0 0 0 0 0 0 ovf
3 CO: 0 0 0 0 0 0 ovf
5 CO: 0 0 0 0 0 0 ovf
6 CO: 0 0 0 0 0 0 ovf
---
Calibrating Sensor ID: 3Hit space then Enter to stop
====================================================================
time Val Min Max Span Mean LSE ppm
--------------------------------------------------------------------
2 O3: 0 0 0 0 0 0 2466322688.00
3 O3: 0 0 0 0 0 0 2460062976.00
4 O3: 0 0 0 0 0 0 2453835008.00
5 O3: 0 0 0 0 0 0 2453835008.00
---
Calibrating Sensor ID: 4Hit space then Enter to stop
====================================================================
time Val Min Max Span Mean LSE ppm
--------------------------------------------------------------------
5 VOC: 0 0 0 0 0 0 ovf
6 VOC: 0 0 0 0 0 0 ovf
7 VOC: 0 0 0 0 0 0 ovf
8 VOC: 0 0 0 0 0 0 ovf
---
Calibrating Sensor ID: 5Hit space then Enter to stop
====================================================================
time Val Min Max Span Mean LSE ppm
--------------------------------------------------------------------
3 Dust: 0 0 0 0 0 0 ovf
4 Dust: 0 0 0 0 0 0 ovf
5 Dust: 0 0 0 0 0 0 ovf