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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)+ I {2 l6 u- u3 m
- #include <ESP8266HTTPClient.h>& j6 h. r$ S6 d, T2 R' o
- #include <ESP8266WiFi.h># q: O1 W# _% U! W6 {
- #include <ESP8266WiFiMulti.h>
5 T/ h+ K: K( e1 d1 H$ u - #include <ESP8266WebServer.h>
: i7 {+ w C' U2 @$ D - #include <arduino.h>
8 m% W" i1 c# w: I3 ?& z4 a - ESP8266WiFiMulti WiFiMulti;
8 h! c$ e+ p) F0 r' V _6 T( v - ESP8266WebServer server(80);- w8 }* Z' X+ q
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' N( e: Z, G, p - ADC_MODE(ADC_VCC);5 J+ X! f' h; b) s$ ~
- void setup() {. ?9 `- W2 `/ |# S9 Y
- Serial.begin(115200);
" o/ R. C( A* u/ i! D7 c+ G - Serial.print("\r\n\n");
/ K* N+ \' u7 s/ H3 S - pinMode(2,OUTPUT);/ S7 J2 G; ]9 G7 c7 ?
- // WIFI( s, f3 Y: p, |, t3 J: h" t) I
- WiFi.mode(WIFI_STA);
$ X* a* t1 ^" u) Y/ z( y/ w - WiFi.hostname("Sparkle");7 i: D% W6 V/ Y! S
- WiFiMulti.addAP("wifi ssid", "wifi password");
; q F9 m9 e2 _! Q8 N - int tryNum = 15;5 U; O3 X2 _: d) n
- Serial.print("Connect WiFi");, `' B. {" a0 G% n! h; V
- while (WiFiMulti.run() != WL_CONNECTED) {
2 V) ^: u" l/ L+ {% P - digitalWrite(2,0);/ \: X# ~! c/ B$ s2 L
- delay(200);8 P& k s& f$ \ F
- digitalWrite(2,1);
, M/ Y1 u# c/ K; z. }0 H - delay(300);( ?* c x9 V' ]5 S5 G$ }2 z+ b
- Serial.print(".");" }" L3 W0 S Z2 r; B5 }
- tryNum--;
; t! b0 l: z3 f" A4 d) K - if (tryNum == 0) {1 x4 v! F8 j: J4 s5 z' b7 R! d
- // 1min
9 ]8 ?, l8 L4 f* R - // ESP.deepSleep(60e6);
$ p+ G( c( B- H0 p i' H - ESP.deepSleep(0);
k. H. V, T6 n6 g - }
/ `# R& X* h- ~7 p7 W$ B5 l - }4 r0 ]* v3 a; }7 Q+ i
- Serial.print("\r\n");$ P" Y/ J1 i# e+ k3 e$ ~+ }
- digitalWrite(2,1);' w, X. @, Q0 x$ z3 W2 C
- Serial.print("IP address : ");, [% G% A3 o. q6 r
- Serial.println(WiFi.localIP());
% Z: \& N" H* N& R2 [! I - server.on("/", HTTP_GET, [](){! z/ |7 b( }. m% d. c
- server.sendHeader("Connection", "close");+ |0 G- r( N% P7 }- x3 w2 Y
- server.send(200, "text/html", serverIndex);/ l! D8 p, ?7 @% {0 L- b G" l* E
- });
+ H; ^- A9 X1 e4 l4 l - server.on("/update", HTTP_POST, [](){; e2 t0 O7 C# U; U I" m
- server.sendHeader("Connection", "close");5 {6 ?1 J8 `: T# E
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
2 _ j0 ^0 g, c3 b4 x - ESP.restart();
$ M% i, i2 ^) v - },[](){
: j5 E- |/ x0 S' x+ e! D - HTTPUpload& upload = server.upload();- ~+ g3 _* s0 ?. t0 v. }
- if(upload.status == UPLOAD_FILE_START){9 s7 o5 v# ~: |( S1 {( V
- Serial.setDebugOutput(true);
& E3 p0 C/ m+ o - Serial.printf("Update: %s\n", upload.filename.c_str());
/ E9 e1 q3 M P( m% T - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ O& O3 J8 e; i* x# N' y, H
- if(!Update.begin(maxSketchSpace)){
( A/ f7 ~# Z: ^# H - Update.printError(Serial);2 W) f \/ f* }3 T+ e0 N+ N
- }
& W$ a* B; T l: R - } else if(upload.status == UPLOAD_FILE_WRITE){
- e" n( I% G$ b - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
+ F5 z" N$ P) L: l5 a0 |; I! o/ Z9 n; w - Update.printError(Serial);& g6 U7 W/ D+ @5 {
- }5 O3 A4 b7 X9 Q! [$ z M8 ?. [
- } else if(upload.status == UPLOAD_FILE_END){
) b4 U/ r& \) J. n. a( [) Q o1 G - if(Update.end(true)){
j5 _" X* l' e' l+ ~: d( Q. d S4 v - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);4 d' D3 `. u# {' ]4 Q$ }3 m
- } else {/ y% j) G0 u7 Y& s; N
- Update.printError(Serial); T5 x" W$ l+ N9 s" u: [
- }) ^" N. M8 P9 a& R
- Serial.setDebugOutput(false);
& Y- N5 t" [- S - }
* T8 @% F% ]2 f: h* L# q! S - yield();! S. S0 g$ [+ T; M- Y6 [
- });
$ H6 H4 P5 Q/ {8 ] -
# c3 M8 \! @# @9 e5 J) H) u/ y1 Q( | - digitalWrite(2,0);( a; b- ^( M3 o# A* U8 T! e3 X
- mainAction();0 H2 P) [: w$ V9 Z6 b" k
- if (digitalRead(0)){
$ h* B' S2 r- u - ESP.deepSleep(0);+ \' H8 H9 I+ Q3 `( \2 H+ l
- } else {
|# |2 W4 }9 q' p2 {% ? - server.begin();
/ ^1 P" D1 k% G! x - }
7 o1 ]. t8 q7 L- N$ Z - }
9 a4 o6 f& p' @' h) l8 F3 k( ^ - void loop() {7 K& u9 K) R" o+ ~; n
- server.handleClient();! u7 t; i0 X% f
- delay(1);" C0 L" k! A5 ~; g# O
- }
' \( g9 ]1 f# o: N9 Y( C$ y - String doGet(String url){- g& b* j. O% Q$ m4 M
- if ((WiFiMulti.run() == WL_CONNECTED)) {
) k' N e6 ]1 P, @8 j; a5 h5 G& { - HTTPClient http;
7 C( Q$ ~2 b( J/ m! B$ C - Serial.println("[HTTP] begin...");
# ?2 Q1 x, r& Y) b T - if (url.startsWith("https")) {
* r4 P4 V2 b" k - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
( e3 \) c' o' B8 ~( k" n+ l - } else {
; k$ {* I. G! N! d/ ]. k7 @& A - http.begin(url);
) d! k) u4 \$ v - }
: [- T& f$ B$ {/ z9 Y - Serial.println("[HTTP] GET...");' N( `! ]7 A/ \# n+ @
- int httpCode = http.GET();0 [; h# {1 |: ~5 _/ k1 |
- if (httpCode > 0) {$ n: p2 @$ \- B3 l4 p
- Serial.printf("[HTTP] code: %d\n", httpCode);
& D0 O' S# T* E8 J/ F% ?: a) I% R4 d2 K - if (httpCode == HTTP_CODE_OK) {, _6 ]- z1 ]/ l+ X2 E
- String payload = http.getString();
9 ]& W8 B! _1 T( P - Serial.println(payload);
8 J2 s- z' R& W0 K7 t - Serial.print("\r\n");( g1 S9 n) D2 q/ O0 k
- return payload;% G# q3 h( w. c, Q
- }' }* X; ?/ e: V
- } else {
' r/ H3 f. E3 H( R6 z T - Serial.printf("[HTTP] GET... failed, error: %s\n",
_, g7 y8 t; m6 |" S5 g# S$ ]) M9 M - http.errorToString(httpCode).c_str());% F) d% D# `6 V
- }7 T. Y. B7 P9 k9 e. E( B' u( x
- http.end();
" C( a3 A( G: z3 a; t) Q - return "";: n1 m+ \( o% c ~3 x6 _
- }
* R% C1 D& C0 O8 a) |/ C) I1 P7 a - }' ?& o0 K+ ^9 v( j% q. z
- void mainAction() {, L- `, w5 K r0 D
- // 发送请求0 ^2 C# }* t( M$ Z& V& Q0 d3 y& J" U. u
- doGet("http://google.cn");5 r$ T' x! s- o- V3 ^
- }
! Q4 _2 M4 h: w& r f
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