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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)
2 k3 d+ H% q! }* l6 l+ ]7 d* C! P- #include <ESP8266HTTPClient.h>) {2 ?) ]6 \. I5 q8 V6 O1 b. O4 _
- #include <ESP8266WiFi.h>
: X5 F( ]& e9 e0 k! I! U - #include <ESP8266WiFiMulti.h>
! A% Q( q! L' C/ r" N. r9 E9 } - #include <ESP8266WebServer.h>" `/ Q1 z" c0 z; Y
- #include <arduino.h>
9 p3 M+ _) J) ?1 [3 \9 ?, N, R/ K - ESP8266WiFiMulti WiFiMulti;
1 L9 N( C8 ` V5 a4 G7 w; ` z1 n - ESP8266WebServer server(80);7 j7 Z1 f* z s3 @4 V! K
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, @! F4 s f6 @) ?$ M% E7 N - ADC_MODE(ADC_VCC);
) z, z: b0 L2 R* f7 p - void setup() {
+ @4 ]8 N8 v- S5 F7 D - Serial.begin(115200);8 z. s W) }% ~+ I
- Serial.print("\r\n\n");
3 v- Q( ^, B4 ^* p - pinMode(2,OUTPUT);
, e) q% Z b5 ~; E - // WIFI5 U4 M1 o0 D0 S; Z6 u
- WiFi.mode(WIFI_STA);
/ Y2 Q4 q/ M+ \7 F( l: p - WiFi.hostname("Sparkle");2 K: s! e; O: ]
- WiFiMulti.addAP("wifi ssid", "wifi password");
0 e6 c" O* I2 x, {( ?7 b - int tryNum = 15;1 b2 Y8 A: b- n. {1 a
- Serial.print("Connect WiFi");1 |! M4 G7 c/ s
- while (WiFiMulti.run() != WL_CONNECTED) {
7 S/ x7 f: l3 F$ p9 C$ D - digitalWrite(2,0);; }( `7 w* ^- S l9 M( \$ e4 I! K
- delay(200);
. z$ Y- k0 E/ o# s( ^/ M - digitalWrite(2,1);
2 e4 H; a3 \6 j0 u V0 z - delay(300);& f/ H( B& J4 u
- Serial.print(".");! ^. L* ^; G4 a/ }# Y( q4 e5 [
- tryNum--;
' O \* C) g! P' R - if (tryNum == 0) {
/ h; g I) X B- k - // 1min% f: ^+ Q# g$ J2 \3 d
- // ESP.deepSleep(60e6);9 h' C; A8 F" e
- ESP.deepSleep(0);: B; E7 h9 x! M% h& ?. I
- } K$ y: [- ~3 S& D. |
- }
6 x, E2 E, F/ u: j3 o# f - Serial.print("\r\n");
4 U c q* ?: V# f1 b& P7 ` - digitalWrite(2,1);
" c7 K* U5 P( |. [7 d. f; E1 h* I - Serial.print("IP address : ");
$ H1 E$ f! L2 r: w/ G' X - Serial.println(WiFi.localIP());( Q" s5 Y$ f$ u- x
- server.on("/", HTTP_GET, [](){ X3 N: ^: F6 |
- server.sendHeader("Connection", "close");
& s" K+ u( I5 G* q. H, N - server.send(200, "text/html", serverIndex);
8 c/ o& |4 w' Q0 q5 @ - });3 i0 q# W( Z- ?$ t
- server.on("/update", HTTP_POST, [](){
2 c6 r1 ]% ^5 [/ y A; V; _ - server.sendHeader("Connection", "close");
3 ]4 O. w+ _1 W( Y; d - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
W4 ], e$ ?& m2 ~. e6 g - ESP.restart();
- T9 {% Z" |& H4 m9 y8 o - },[](){" A0 b" B. c9 J/ B% J
- HTTPUpload& upload = server.upload();
9 J7 o/ ~& [5 f- S, _) v - if(upload.status == UPLOAD_FILE_START){# h3 Z* Q2 P( u
- Serial.setDebugOutput(true);
+ O/ k& Q; m4 N1 d - Serial.printf("Update: %s\n", upload.filename.c_str());3 T9 ?1 @4 l- e% \
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 k) {: o6 q: I. x
- if(!Update.begin(maxSketchSpace)){# J/ i" A4 G& I6 [0 E6 i
- Update.printError(Serial);
5 f! g( |% U! e3 Q* q$ R- i! @) z - } w, c- {& P" R9 n2 z
- } else if(upload.status == UPLOAD_FILE_WRITE){
- E2 J2 X) t& \* F9 @8 }( a3 [ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
8 V, n- Z4 W J% T - Update.printError(Serial); l4 P4 S7 s1 b: H" f( f
- }6 f: _4 b( S/ m* f4 e" n* [
- } else if(upload.status == UPLOAD_FILE_END){
3 V) J% p( p1 H$ l2 u! L - if(Update.end(true)){ u) d- e, C, K8 x6 z/ q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: S2 v. t8 C, p3 I; k
- } else {
( J+ a/ d) I( X& {5 U F - Update.printError(Serial);
0 [. B" }7 B: K8 c4 G, J - }; o+ j' F5 N4 ]7 k m
- Serial.setDebugOutput(false);
( }5 n: `" r( b! p6 i3 w - }
* `0 y. H: ]/ U2 ?1 i - yield(); q$ f. k! n- o' V% W* L
- });
S4 [8 j0 J( T9 M. c - U7 \2 j, F4 w3 m' `. ^
- digitalWrite(2,0);
4 r# L5 N+ P' O$ @, @1 m7 N - mainAction();
4 F( P% g; X7 I E - if (digitalRead(0)){# B0 k" j5 ]& z# n' [9 a. F
- ESP.deepSleep(0);
3 {6 K' S+ L7 d0 O1 h" b5 o - } else {
p! v6 H5 g- @: G% Q - server.begin();
e# k5 D6 Y0 d. }8 \! F - }0 Z; K7 T5 V4 h# G0 W+ e! R' Y2 M
- }
7 G% S3 k, |* Y: G, b$ x. W, N - void loop() {% f6 v* Q) c8 ]8 ~8 ~1 g2 x
- server.handleClient();
2 u+ v v+ R, M. ` - delay(1);
3 [6 r7 J& N; l- R - }& O' G( b7 V8 k ?
- String doGet(String url){
& X6 c; L3 a1 y. q+ U: c - if ((WiFiMulti.run() == WL_CONNECTED)) {
. F; G: H3 B* L( G4 j( l- P# r' p - HTTPClient http;
# ^( O8 t5 r1 |- n5 m6 h - Serial.println("[HTTP] begin...");
: |% U9 Q- c, m+ g, s4 X# v - if (url.startsWith("https")) {
7 p* A0 |+ @6 B: J4 @ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
8 x8 Y1 J/ K. [, o - } else {0 J3 M" w% p3 n1 e! C; M- D
- http.begin(url);" J/ v8 F' b% u+ @
- }9 ] `5 X, g8 s# I' `' \5 j
- Serial.println("[HTTP] GET...");5 I5 V O' f0 l) k# S& Z
- int httpCode = http.GET();& V5 N( O" B0 |2 E5 I
- if (httpCode > 0) {
i' m' T0 b1 |) `6 N @- e. W% U) f" S - Serial.printf("[HTTP] code: %d\n", httpCode);% Z, Q. R3 p; l2 M6 q6 p- B8 R
- if (httpCode == HTTP_CODE_OK) {( \5 a# }/ n/ V; `: j1 _ {6 c
- String payload = http.getString();
# G) k# l- @0 C. ]! M. A - Serial.println(payload);- N8 z6 X. D! G- ^3 z6 x
- Serial.print("\r\n");0 i7 s K+ V( e: m
- return payload;
# x+ |6 H3 j1 Z) | - }
% h* v# w* u$ X J - } else {/ ~- {- U8 u7 N' b) ], o1 S
- Serial.printf("[HTTP] GET... failed, error: %s\n",4 j7 l1 C0 p% H8 R' e
- http.errorToString(httpCode).c_str());
) c- g' d! H1 R2 y9 t - }5 K9 C6 ?5 Z# m7 n3 H2 _+ `+ \( r
- http.end();5 v j/ O0 t) `* F8 c
- return "";
* `3 w" X5 M4 _% Z, \! j - }" s6 B% h% X* J! V/ Z$ ]' }
- }
* _- ~; ~* A0 H- q - void mainAction() {& q$ w/ _; K3 I1 \- K+ T
- // 发送请求& r* w% b8 w, b2 H0 ]
- doGet("http://google.cn");
( A/ S6 R8 M- b% j& j - }" ^0 J& H, R `- M- |: V" s1 U8 ^
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