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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)& m& ]- f8 F% ?5 N
- #include <ESP8266HTTPClient.h>
+ h! l4 y0 x& G$ s - #include <ESP8266WiFi.h>* {8 s8 f6 ^; K+ ^
- #include <ESP8266WiFiMulti.h>% V" k8 g5 K: V
- #include <ESP8266WebServer.h>
( j: C! C9 X* L! n* } - #include <arduino.h> E$ z g. K2 R' v. w
- ESP8266WiFiMulti WiFiMulti;
3 K! [, r f0 x, ~) h4 u8 X - ESP8266WebServer server(80);
/ t) V8 z, }4 k2 j8 ~9 U4 w - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 Q# \+ ?& @' }5 O( k" W: ?' n, E - ADC_MODE(ADC_VCC);
# h) G, V2 `* [, b% V V! E - void setup() {
8 `# G) t" ?! t' |3 B - Serial.begin(115200);0 ?) F9 {4 W' e. p: I
- Serial.print("\r\n\n");- Q1 l4 }5 T2 x, |: I B3 F
- pinMode(2,OUTPUT);
c- o& y' ~4 T* f* I# e - // WIFI
4 a% g$ A7 i( i' [ - WiFi.mode(WIFI_STA); Q8 {% |/ ]6 W' y2 b
- WiFi.hostname("Sparkle");
: @5 ]3 s' A0 h - WiFiMulti.addAP("wifi ssid", "wifi password");; p9 L# f4 z. J2 o
- int tryNum = 15;
( l& o9 w4 c! c) L# v% g - Serial.print("Connect WiFi");
/ S& d/ M5 z+ p$ h; K$ p3 _( {+ h - while (WiFiMulti.run() != WL_CONNECTED) {
- M1 y2 q/ H5 B* Y m1 e* e; J; o - digitalWrite(2,0);- L: j% h! o B+ d
- delay(200);: N! T$ W( |5 W9 a, Y; l- K
- digitalWrite(2,1);! n% o( M) K* ^0 {
- delay(300);3 c/ C3 k D$ A
- Serial.print(".");5 N8 ?/ w6 m& {4 k3 m& _ M% I* x
- tryNum--;
7 g; ?; b/ Q# y3 G, h) B# D7 B - if (tryNum == 0) {% |( f1 J$ {" o+ z O! n5 x
- // 1min. \, b) h$ K; u8 P5 |- ~) k
- // ESP.deepSleep(60e6);3 Y& X& c, P& F
- ESP.deepSleep(0);2 }1 G- A6 \, l) k5 l. p, \4 w+ }
- }* k! E6 F3 D$ P8 U
- }
- D+ `- x- L5 [. p% ^) g - Serial.print("\r\n");# I2 T- S1 S, @( P& `
- digitalWrite(2,1);2 J2 V2 j& s; ?6 Z: j, V
- Serial.print("IP address : ");
5 L' \7 b+ y( V- u) w6 B - Serial.println(WiFi.localIP());
9 n( I& n+ a; u0 x - server.on("/", HTTP_GET, [](){/ r% f; h i' \2 q3 a6 q/ M; R! D
- server.sendHeader("Connection", "close");
' b- b7 ]& l3 X& l7 J2 m/ Q7 Y - server.send(200, "text/html", serverIndex);4 C$ n2 |) _$ h4 t7 {
- });
/ B. S% z0 k. [/ z - server.on("/update", HTTP_POST, [](){) d0 M/ K3 ?6 O1 `/ C
- server.sendHeader("Connection", "close");8 W, A7 s& [/ U& |. C
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# K1 y' u$ d0 b& L9 Q1 o
- ESP.restart();/ o4 j9 i/ Q; x+ J- J0 @4 z
- },[](){) O. }9 z# W5 [. R4 t
- HTTPUpload& upload = server.upload();
8 e4 i3 J' [& R- C- Y' K - if(upload.status == UPLOAD_FILE_START){: K3 Y+ T7 u9 c! X9 \& G
- Serial.setDebugOutput(true);
- \: P4 J6 c. p+ ]& J" r! D - Serial.printf("Update: %s\n", upload.filename.c_str());
! g% r$ L4 S; I* x( `- z' s - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
" F1 E# |# E* M/ x - if(!Update.begin(maxSketchSpace)){( |4 X) @/ _6 `/ ~
- Update.printError(Serial);
1 q# I4 }' P# z! t9 [ - }- K* I' d: G1 f7 @
- } else if(upload.status == UPLOAD_FILE_WRITE){
* _) s6 N ~- ] - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
p- N! s9 p. \1 y$ }) Q - Update.printError(Serial);
* c* ^" O( e4 S) f/ X8 `" _( { - }
" ?# }8 Z! H8 ]+ l - } else if(upload.status == UPLOAD_FILE_END){. H; u% R4 _% ] x2 M! ?7 V
- if(Update.end(true)){% h6 l! @4 _0 z. v! D
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 E7 o/ T" n2 v, t. q
- } else {8 G D7 B( K# R7 R5 n% W
- Update.printError(Serial);
" T, g- T9 S5 u4 p; e( }' r - }
: G8 L9 G7 [* J3 F+ }8 I - Serial.setDebugOutput(false);
5 P6 @/ X4 S1 a+ v% T7 e1 \8 y - }
6 e7 A) u) W, P$ a1 p, s - yield();8 s6 X9 ?2 B0 Y, C! P
- });
; L& ^, D, S. L- j" X: e -
9 T" W/ I$ N5 o# l6 U* e - digitalWrite(2,0); i/ d% i/ e2 D# K& a3 o) {1 o
- mainAction();( e1 j; `$ z; X% s+ c8 f6 y9 t& M
- if (digitalRead(0)){
8 w% C+ I7 _" q' b0 @. V - ESP.deepSleep(0);3 c! }5 i; e* k
- } else {5 S2 F- ~+ M" E) k% ^" M! o; r, |
- server.begin();7 Q. V& V* }" [
- }
# `% o5 O% W9 x# B# F - }
6 l! P7 ~4 ?( h" P - void loop() {( i4 g0 L* s. F4 q
- server.handleClient();& a, B7 p3 _: p7 R: q _5 O8 ?
- delay(1);
7 L' p7 a# U* g4 N7 ]9 R - }
9 s; w* E+ v6 Y0 @0 l - String doGet(String url){
& d; q; r7 t0 l$ c* {4 w - if ((WiFiMulti.run() == WL_CONNECTED)) {9 ]9 h+ Y- B$ F; u+ K7 C
- HTTPClient http;$ S, }. a' y6 X/ s: s; J6 C5 D
- Serial.println("[HTTP] begin...");0 \ d( f [7 `( g9 n$ h) c
- if (url.startsWith("https")) {
9 O5 m9 p" R( C3 E' N- F - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 m' Z$ i0 f3 a* r
- } else {
5 B8 R5 z: m1 r' { - http.begin(url);& Z( @( b- O7 w& r9 h( J
- }9 G: `4 l: ^) J; ~9 z. T# v3 _0 m
- Serial.println("[HTTP] GET..."); k; C; n$ Y, z; [
- int httpCode = http.GET();( T8 B5 V! h0 }- R" i0 y
- if (httpCode > 0) { y0 o5 |" {+ A, S
- Serial.printf("[HTTP] code: %d\n", httpCode); b" Q! D. I0 T+ h, U" m- D
- if (httpCode == HTTP_CODE_OK) {
* ~2 w- ~. |( U - String payload = http.getString();$ U& s/ ~5 Q: \# T- C% z! d
- Serial.println(payload); J+ q" l# ^' V' V- ?4 `" T& B$ E, v8 {
- Serial.print("\r\n"); S. N/ i2 K6 k) y( F; _
- return payload;
8 W3 Q& h Q" M# V" A" k - }
% i; A9 {: I) \# R - } else { _5 L8 N9 Y1 Z! Q* m
- Serial.printf("[HTTP] GET... failed, error: %s\n",, ^3 q6 ~5 g& r# ?
- http.errorToString(httpCode).c_str());9 Y# l2 K$ {3 i1 o& _
- }
. F4 i6 [ [! v* p: B* f8 N N8 F - http.end();
) b7 q B$ Z' y6 F6 j - return "";
% P1 z- Y( k9 C; E( c - }7 x0 ?" R( m8 e9 z: ]" `
- }6 R& V2 i/ M, D5 k, `3 L
- void mainAction() {- l) m( C/ y& N$ Z. A
- // 发送请求% S8 E7 ?& ?* F# m
- doGet("http://google.cn");$ Q# c$ Q* F9 G1 K1 \
- }( j3 D, W. M D" Y
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