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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)! z8 K$ [0 S" e
- #include <ESP8266HTTPClient.h>4 q( L( k. g- S. H, z9 V
- #include <ESP8266WiFi.h>" |. w) B2 u$ l6 L* L' Z
- #include <ESP8266WiFiMulti.h>" I0 K% w8 M7 L( ?9 W# ]
- #include <ESP8266WebServer.h>. B3 P; K2 {8 R( N1 J
- #include <arduino.h>
9 Y; l0 \$ z5 U0 V9 t: @9 t - ESP8266WiFiMulti WiFiMulti;
1 b" u- u g) T* H* s+ L - ESP8266WebServer server(80);
* y- Y0 y. Q9 `; Q1 h; C - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 A) H! y; v4 u - ADC_MODE(ADC_VCC);9 \- m5 |' a' F- r0 {0 \' G
- void setup() {* ]8 @/ G: b: x( j, Q
- Serial.begin(115200);# h& |' z! {7 J. |7 `
- Serial.print("\r\n\n");3 |4 I' w0 i7 u) U
- pinMode(2,OUTPUT);! B4 O% R$ x6 e, \
- // WIFI5 E& i* ^" q& r `0 F" o
- WiFi.mode(WIFI_STA);( e& e. G1 c! S1 a# E1 P- [0 Q/ V* i. w
- WiFi.hostname("Sparkle");
$ m' J O, g7 _6 ^3 Y - WiFiMulti.addAP("wifi ssid", "wifi password");
( c% r; T; i# P/ C% e. f, ~ - int tryNum = 15;
; O$ m% V6 a" n7 C$ G - Serial.print("Connect WiFi");/ Y, U: T( R/ m' l! }* i! a# y
- while (WiFiMulti.run() != WL_CONNECTED) {
% F( k5 J# K9 _- d B9 X( G* F - digitalWrite(2,0);
2 g1 @6 c* U! a3 f - delay(200);
' F" ^$ p2 M& U! c, i$ o7 O - digitalWrite(2,1);
2 u0 b+ _; m7 D' e$ d' c* z' T - delay(300);/ K D: c3 O( O. v* [" N/ T' H! `
- Serial.print(".");
$ `/ U; @0 ?0 J% Q) j - tryNum--;
1 U( C% G3 P' a' G& a$ ~ - if (tryNum == 0) {) e$ q- G0 n0 b7 c% A6 P# c6 B
- // 1min0 R8 L* G5 E$ i- ~7 a6 a
- // ESP.deepSleep(60e6);) c* A! x) O) d8 J; _; x/ Z
- ESP.deepSleep(0);
2 E A; C0 `# }- s - }
0 o2 m9 u3 ?4 D2 p6 Q- W5 t1 L - }' `$ }8 {. D& X# {& {4 E; T& X
- Serial.print("\r\n"); U- V& D2 w" D/ Q2 y
- digitalWrite(2,1);
( @4 t% I0 F3 P0 e6 v+ _ - Serial.print("IP address : ");
) b$ |% X5 W4 N3 n$ L% G9 R+ Q) z - Serial.println(WiFi.localIP());
2 h) ~( N: \) ?$ I' b z. { - server.on("/", HTTP_GET, [](){
$ q1 c4 |+ W; b: Z - server.sendHeader("Connection", "close");
: q/ \. Q! Z! P" C - server.send(200, "text/html", serverIndex);. h7 w3 c* _5 \# S" [1 {- _
- });7 Y% q8 H v$ [1 A4 ?
- server.on("/update", HTTP_POST, [](){
) e! @: r4 t, n/ U- W- Y' g - server.sendHeader("Connection", "close");: H( m) c5 S$ u: S8 ?0 ^
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");+ F7 b: X$ h- v
- ESP.restart();3 D% o+ g* s1 y1 I
- },[](){
: T# d- m9 K# { b7 R - HTTPUpload& upload = server.upload();+ y* l* S# m% w8 T6 X9 r w
- if(upload.status == UPLOAD_FILE_START){8 x: T$ C4 D8 J" s' U+ Y! K
- Serial.setDebugOutput(true);* {5 J# q" V) `, S' I3 T
- Serial.printf("Update: %s\n", upload.filename.c_str());
' k+ g3 {# h' y# b/ O - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
_) D6 G% m5 D6 r0 Y# o - if(!Update.begin(maxSketchSpace)){+ \" r4 `) X. V6 z2 z3 o
- Update.printError(Serial);% M( H: C( x5 U
- }
; |9 A% H5 P' L( Z - } else if(upload.status == UPLOAD_FILE_WRITE){
, m0 l9 P2 k4 r8 @9 I& Q7 ]/ K" q - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 `: d* V6 L6 D" C9 }
- Update.printError(Serial);8 H. D! S- p; G, h6 |# F2 p- |
- }
$ I4 _& ]3 b0 `( `1 m0 T - } else if(upload.status == UPLOAD_FILE_END){. \- R. A: |$ q/ q/ k
- if(Update.end(true)){$ X/ e1 r6 j& U/ O( M* `* \
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 }0 Z1 S* s) T
- } else {1 b0 I' F% O- j' i4 B
- Update.printError(Serial);' I* {5 t3 q7 l1 T' b9 U0 `- ]
- }
2 H3 r# f6 o! n2 L- ^: y4 h ] - Serial.setDebugOutput(false);
- r" ?2 X9 Y: O( D. m' W - }+ {# D3 f1 o0 g) N0 e# Q
- yield();/ _8 V9 [$ q4 ]5 E/ Z; Z
- });
7 Q; A2 z# v( _0 E& _( }1 E -
. l1 K5 H. a8 w' @ - digitalWrite(2,0);+ x+ A' T# ~! C8 \$ }% E
- mainAction();
% y8 _( p( P* g7 \6 [% r - if (digitalRead(0)){; C9 x% f7 y0 ~( @
- ESP.deepSleep(0);
+ B8 O7 Z+ r) t: E. }6 R' J2 h - } else {! }# \# n4 E( U! P; S
- server.begin();+ P6 }$ N4 H9 }' {% C5 b) U
- }7 t D; e! `3 c; U! g0 s; k. C2 i
- }9 i7 u7 o% P; P s9 E
- void loop() {9 C' p) G% x3 O6 ]. ~
- server.handleClient();0 j4 a. k7 g, l3 @ o
- delay(1);
, @9 O+ d+ A: O" o3 F - }
) z2 N$ B3 B% o+ N+ I" j - String doGet(String url){
1 ~& F! b: D7 n9 f - if ((WiFiMulti.run() == WL_CONNECTED)) { K0 n+ o) ?- Y2 M2 D% S
- HTTPClient http;4 o3 ~5 ]) H$ [1 v5 u/ [
- Serial.println("[HTTP] begin...");
1 S' i' J4 M# A/ A) K' z# A - if (url.startsWith("https")) {5 [! s% J" y. q& M1 K
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");% L8 ~7 F- i0 ?1 [' f2 O9 J
- } else {, ?* ^ W- b7 N) p' X# L" `6 C% W
- http.begin(url);
# y8 T. G/ X6 B* E - }
" y6 w3 [; m" M( f0 H& r& [ - Serial.println("[HTTP] GET...");
- I! t9 r: Q' z0 U( I) E9 w - int httpCode = http.GET();, x: W% p& V g3 p" ~+ K
- if (httpCode > 0) {! D! e0 ]$ E- q, u! t9 P: w
- Serial.printf("[HTTP] code: %d\n", httpCode);, J5 r7 r! L! b/ H( F/ w
- if (httpCode == HTTP_CODE_OK) {/ Z! z( y' r$ H" ]
- String payload = http.getString();
& W' l/ ^8 h8 g# }% E4 L; X - Serial.println(payload);
8 [4 _) s0 g, L. O7 l3 m! H - Serial.print("\r\n");3 }9 u% Q/ b) f$ O' P# o: |! G
- return payload;# a6 M c5 F; n! p, Y
- }
# A d) r& ?5 s Y) b. l2 y' Y, t, r - } else {2 |( c; o! F/ I4 ]
- Serial.printf("[HTTP] GET... failed, error: %s\n",
" f' ~6 L. ]& |. W - http.errorToString(httpCode).c_str());% g. `; Y0 c! n+ C n( J
- }1 `5 s' z% r& Y% P; o$ d C
- http.end();
" P# ?( f, z# P" H) f @0 B( a - return "";( ?! J v5 ?" S; n, m% f6 ]
- }/ `: g, S" E* U- ^4 j% k! g
- }
( b; I* K! n" j8 c. Z7 Y, K - void mainAction() {
4 J6 W, M1 D7 v: o2 X3 e - // 发送请求( ?7 i- h6 y+ T* J( N8 @* z( m X
- doGet("http://google.cn");
7 p. G; B( e& D! z, R3 s7 Z/ g - }
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