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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)
) f9 ~, L0 y: I9 N- #include <ESP8266HTTPClient.h>
1 _$ V1 j) I- @% N V. o - #include <ESP8266WiFi.h>( \ x' B! Z! u: g* I$ y6 `
- #include <ESP8266WiFiMulti.h>! d2 a: S" ]# V5 q9 I1 t
- #include <ESP8266WebServer.h>
9 Y1 j; @2 g5 M: t& L/ ^. O" B6 I - #include <arduino.h>
1 _( [; b2 [# ] - ESP8266WiFiMulti WiFiMulti;. M; K8 _. z$ L6 l# X# {
- ESP8266WebServer server(80);
3 B% p: Z9 B" m% t4 m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, I$ J# x6 |. ? - ADC_MODE(ADC_VCC);
z# N6 S" g" b+ E# K/ c - void setup() {
% Q; E# P! w) |& R; _8 q" H4 c N - Serial.begin(115200);
* Z: m( H9 e$ B% u/ A - Serial.print("\r\n\n");6 c' ~3 q3 I% p! c- D
- pinMode(2,OUTPUT);
+ }( L' c% X: n! V x - // WIFI
: ]& {: Q/ L p& T9 F8 z! P7 @ - WiFi.mode(WIFI_STA);
1 J- [2 v7 A0 ]% [ - WiFi.hostname("Sparkle");
+ Y5 U$ c1 u4 f4 Y' ` ]5 x- ] - WiFiMulti.addAP("wifi ssid", "wifi password");
- @& K5 D( I/ Z( |1 ^5 U; H - int tryNum = 15;! C% i6 u' V6 y7 {8 b5 m$ }
- Serial.print("Connect WiFi");
6 R- V( V% I& n! Q$ {0 i m0 B% L - while (WiFiMulti.run() != WL_CONNECTED) {, w9 i& I: ~, \+ G8 n7 ^4 O, q
- digitalWrite(2,0);
) p! y2 b* c+ n - delay(200);- G) l1 e p0 s% @! [9 ]7 i: u2 P
- digitalWrite(2,1);
B8 t8 {6 W* y1 n: {% z - delay(300);
% W& G6 K! j' V0 j* O- r* q b - Serial.print(".");
8 V; F7 w( M' I( M3 H+ [6 ] - tryNum--;
4 ?4 q, }" e( W. T3 x - if (tryNum == 0) {! f3 ?3 {- O0 F+ I0 d
- // 1min
3 b# a* e6 i; d) w" T$ x9 T3 U - // ESP.deepSleep(60e6);8 X/ t- n9 P6 |" P
- ESP.deepSleep(0);0 |7 x; r$ f$ @5 \
- }
/ V3 K" X u2 U% `* _5 @8 Y - }
) y( d8 ]% d& a* Q" z% a% n - Serial.print("\r\n");" Y1 F/ W: g7 O0 X. n
- digitalWrite(2,1);3 l- e w5 ~1 K" l e( E
- Serial.print("IP address : ");& P8 q/ [- t m8 s9 r
- Serial.println(WiFi.localIP());
7 q" I, D0 M4 T - server.on("/", HTTP_GET, [](){
" |4 N7 y( }# X4 p6 @. V - server.sendHeader("Connection", "close");
0 `, R! w9 v( w) n& @ - server.send(200, "text/html", serverIndex);1 h' h- |2 Q+ Z( j* L
- });
& \; r" E4 p5 X8 f+ v; C - server.on("/update", HTTP_POST, [](){
) N( X' J' O# u$ b, A7 A3 ]% P - server.sendHeader("Connection", "close");3 I( R% W! x$ d q: _* F
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
! o' E9 o, |8 w- r9 Y, Y. j - ESP.restart();( i' y7 t- [, D( p( k& M
- },[](){0 k6 H1 q+ R, X: y4 ?# e5 W' _
- HTTPUpload& upload = server.upload();
8 `8 q0 I" A) \% F2 q" N2 h) ^ - if(upload.status == UPLOAD_FILE_START){" H/ I! ~5 c1 e+ {" i! c( Y0 N
- Serial.setDebugOutput(true);; Z, W' H* c2 ~' d2 {( v' M
- Serial.printf("Update: %s\n", upload.filename.c_str());
& u1 I+ ^3 V. X6 I: ^$ m+ ~ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;0 p. ?" n; Y9 |# D$ Q
- if(!Update.begin(maxSketchSpace)){
/ _3 \( M$ G' ?9 Z5 | - Update.printError(Serial);
: X$ Z% Y2 x' w* |( \/ I - }
' U2 W5 g3 N! b9 T3 e - } else if(upload.status == UPLOAD_FILE_WRITE){- @4 b' v* t/ O3 L0 n5 B
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( b. {$ `( ]5 P$ t1 l' ^ - Update.printError(Serial);2 a# e+ r7 j* x5 P M9 O8 u' ~
- }. x1 M& J: ?) b* ?1 H
- } else if(upload.status == UPLOAD_FILE_END){
9 }6 H# ?5 H \; _( I% F+ z2 ^3 } - if(Update.end(true)){# y! E( T: w7 |' O9 D
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);* ~( M, o1 m b" F+ p3 h" l
- } else {
% f( x% V; S; h0 h7 k5 g0 P - Update.printError(Serial);
# k" K! `0 [ R: D) g - }# Y1 b# K& b1 w- Q* c
- Serial.setDebugOutput(false);9 Q6 x% I. ~9 B5 v5 }
- }2 ]8 w# G" w8 j6 r+ n1 G
- yield();
7 @) S1 Q3 m8 }* N/ r6 F# z - });9 M9 p8 Z6 z$ K% c: z& |7 U# m& \
- 8 s6 q2 e- d5 D& ^% a q9 q2 E
- digitalWrite(2,0);6 }" h O7 Y, ~
- mainAction();
# A5 C( T1 i" Y! s5 I - if (digitalRead(0)){) u% ^& E5 F' [1 f
- ESP.deepSleep(0);
! ^% f# J. v9 _5 `1 s% U - } else {( I2 P0 j6 O0 ^+ }+ ?! Z0 \
- server.begin();" |' @+ F) d5 n
- }* T( @) P9 u6 B9 c/ k
- }! r& H3 C+ V2 {
- void loop() {
& ?& [# T2 T# E' u" U - server.handleClient();8 z2 U/ ^8 _- h# E( _: @; s
- delay(1);% Q% H5 L5 A3 m2 J
- }! K% c* N, x" H! X# v* H; s3 B
- String doGet(String url){
/ a) M% ?' x0 t9 ] - if ((WiFiMulti.run() == WL_CONNECTED)) {! u0 i) p9 P( [, |3 C ~7 Z
- HTTPClient http;
' A. {4 f/ Z1 @) j8 l) g - Serial.println("[HTTP] begin...");7 q9 s) h3 c( [# J' I& z& F
- if (url.startsWith("https")) {% }1 Q4 m0 @7 ^. N0 q; n4 `7 I
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. M0 U, x# d4 L& t8 A - } else {" Q1 g2 _ D4 x W. m' `: J6 N
- http.begin(url);. N* y" A+ i% h8 V+ G! c
- }
1 _1 a/ e& D/ W4 \/ [ - Serial.println("[HTTP] GET...");# i# |7 g9 h5 T$ I# u) B* _
- int httpCode = http.GET();! @& k! v! Y+ ^
- if (httpCode > 0) {
4 e. B$ C# S9 Y - Serial.printf("[HTTP] code: %d\n", httpCode);
3 Q0 u4 R4 G5 o1 L: s3 J$ g) M2 ^! `& y - if (httpCode == HTTP_CODE_OK) {# N7 M4 z" ~! e* L- C
- String payload = http.getString();5 A" J; s. N6 k) T: z* R
- Serial.println(payload);
4 v& X) x2 p) V - Serial.print("\r\n");
0 R. J5 o$ J3 Q2 }3 m( {) X( G - return payload;
/ U+ V) A* L5 h: c& E - }& l& I1 C0 ^. e; `$ i& K
- } else {( E* J: d+ e9 ?/ b x3 H
- Serial.printf("[HTTP] GET... failed, error: %s\n",. Y" \/ j$ T6 b! B
- http.errorToString(httpCode).c_str());5 ^) A5 Y# E! N# |
- }8 M/ z5 w" v! e+ S I
- http.end();
: F, X5 j8 m7 }; U( V - return "";
# K ?# O' \* p; S' d! ^ - }
, @4 m C6 i/ L" n7 O - }# t3 Z! [2 C8 {- o/ R1 |
- void mainAction() {5 _, R! S4 n B, D# G" k1 g
- // 发送请求
3 l- r- q) r+ {5 a/ I. O0 k - doGet("http://google.cn");0 V; g. k7 b5 h, w6 m
- }- b$ N5 V5 c9 N8 h) J
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