Add more hw tests. (#2688)

- DS18B20
- BME280 (I2C)
- DHT11

Author: floitsch

tests/hw/esp32/README.md

@@ -14,26 +14,30 @@ All tests should be run once after a reboot, and then again without a reboot.
 The testing needs two boards and several resistors.
 
 On board 1 connect as follows:
-1. IO12 - IO14 with 330Ohm
-2. IO14 - IO32 with 330Ohm
-3. IO32 - IO25 with 330Ohm
-4. IO2 and IO4 should be connected to a jumper wire but floating.
-6. IO18 - IO34
-7. IO18 (or IO34) - GND with 1MOhm (or similar high number).
-5. IO18 - IO19 with 330Ohm
-8. IO26 - IO33
-9. IO21 - IO19 with 330Ohm
+- IO12 - IO14 with 330Ohm
+- IO14 - IO32 with 330Ohm
+- IO32 - IO25 with 330Ohm
+- IO2 and IO4 should be connected to a jumper wire but floating.
+- IO18 - IO34
+- IO18 (or IO34) - GND with 1MOhm (or similar high number).
+- IO18 - IO19 with 330Ohm
+- IO26 - IO33
+- IO21 - IO19 with 330Ohm
 
 IO2, IO4, and IO16 must stay unconnected.
 
 Connect board 1 to board 2 as follows:
-1. GND - GND
-2. IO22 - IO23
-3. IO23 - IO22
+- GND - GND
+- IO22 - IO23
+- IO23 - IO22
 
 On board2:
-1. IO19 -> HC-SR04 Echo
-2. IO18 -> HC-SR04 Trig
+- IO19 -> HC-SR04 Echo
+- IO18 -> HC-SR04 Trig
+- IO14 -> DHT11 Data
+- IO15 -> DS18B20 Data
+- IO32 -> bme280 SCL (yellow)
+- IO33 -> bme280 SDA (blue)
 
 IO16 must stay unconnected.
 

tests/hw/esp32/bme280-board1.toit

@@ -0,0 +1,9 @@
+// Copyright (C) 2025 Toitware ApS.
+// Use of this source code is governed by a Zero-Clause BSD license that can
+// be found in the tests/LICENSE file.
+
+import .test
+
+main:
+  // We just have a board1 test, so that the actual test runs on board2.
+  run-test: print "nothing to do"

tests/hw/esp32/bme280-board2.toit

@@ -0,0 +1,26 @@
+// Copyright (C) 2025 Toitware ApS.
+// Use of this source code is governed by a Zero-Clause BSD license that can
+// be found in the tests/LICENSE file.
+
+import bme280
+import expect show *
+import gpio
+import i2c
+
+import .test
+
+main:
+  run-test: test
+
+test:
+  scl := gpio.Pin 32
+  sda := gpio.Pin 33
+  bus := i2c.Bus --scl=scl --sda=sda
+  device := bus.device bme280.I2C-ADDRESS-ALT
+  driver := bme280.Driver device
+
+  2.repeat:
+    temperature := driver.read-temperature
+    print temperature
+    expect 12 < temperature < 35
+    sleep --ms=200

tests/hw/esp32/dht11-board1.toit

@@ -0,0 +1,9 @@
+// Copyright (C) 2025 Toitware ApS.
+// Use of this source code is governed by a Zero-Clause BSD license that can
+// be found in the tests/LICENSE file.
+
+import .test
+
+main:
+  // We just have a board1 test, so that the actual test runs on board2.
+  run-test: print "nothing to do"

tests/hw/esp32/dht11-board2.toit

@@ -0,0 +1,23 @@
+// Copyright (C) 2025 Toitware ApS.
+// Use of this source code is governed by a Zero-Clause BSD license that can
+// be found in the tests/LICENSE file.
+
+import expect show *
+import gpio
+import dhtxx.dht11
+
+import .test
+
+main:
+  run-test: test
+
+test:
+  data := gpio.Pin 14
+  driver := dht11.Dht11 data
+
+  2.repeat:
+    measurements := driver.read
+    print measurements
+    expect 12 < measurements.temperature < 35
+    expect 15 < measurements.humidity < 80
+    sleep --ms=500

tests/hw/esp32/ds18b20-board1.toit

@@ -0,0 +1,9 @@
+// Copyright (C) 2025 Toitware ApS.
+// Use of this source code is governed by a Zero-Clause BSD license that can
+// be found in the tests/LICENSE file.
+
+import .test
+
+main:
+  // We just have a board1 test, so that the actual test runs on board2.
+  run-test: print "nothing to do"

tests/hw/esp32/ds18b20-board2.toit

@@ -0,0 +1,22 @@
+// Copyright (C) 2025 Toitware ApS.
+// Use of this source code is governed by a Zero-Clause BSD license that can
+// be found in the tests/LICENSE file.
+
+import ds18b20
+import expect show *
+import gpio
+
+import .test
+
+main:
+  run-test: test
+
+test:
+  data := gpio.Pin 15
+  driver := ds18b20.Ds18b20 data
+
+  2.repeat:
+    temperature := driver.read-temperature
+    print temperature
+    expect 12 < temperature < 35
+    sleep --ms=200

tests/hw/esp32/package.lock

@@ -1,7 +1,32 @@
-sdk: ^2.0.0-alpha.1
+sdk: ^2.0.0-alpha.144
 prefixes:
+  bme280: bme280-driver
+  dhtxx: toit-dhtxx
+  ds18b20: toit-ds18b20
   hc_sr04: toit-hc-sr04
 packages:
+  bme280-driver:
+    url: github.com/toitware/bme280-driver
+    name: bme280
+    version: 1.1.0
+    hash: e2220d286aad8bbb78e27ffcbf558cbec0e1c687
+  toit-1-wire:
+    url: github.com/toitware/toit-1-wire
+    name: one_wire
+    version: 2.3.0
+    hash: b341bf2f0dec80c1cbd6deb774c45c52e52f183f
+  toit-dhtxx:
+    url: github.com/toitware/toit-dhtxx
+    name: dhtxx
+    version: 1.4.0
+    hash: bf69ad9ac348324803caf8919cf7e9f34aa3d343
+  toit-ds18b20:
+    url: github.com/toitware/toit-ds18b20
+    name: ds18b20
+    version: 2.1.0
+    hash: 09534f8f474d595620531df23b61e9707e1f5483
+    prefixes:
+      one_wire: toit-1-wire
   toit-hc-sr04:
     url: github.com/lask/toit-hc-sr04
     name: hc_sr04

tests/hw/esp32/package.yaml

@@ -1,4 +1,13 @@
 dependencies:
+  bme280:
+    url: github.com/toitware/bme280-driver
+    version: ^1.1.0
+  dhtxx:
+    url: github.com/toitware/toit-dhtxx
+    version: ^1.4.0
+  ds18b20:
+    url: github.com/toitware/toit-ds18b20
+    version: ^2.1.0
   hc_sr04:
     url: github.com/lask/toit-hc-sr04
     version: ^2.1.1