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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 K2 V$ r& l+ `! ~: Z- #include <ESP8266HTTPClient.h>* R9 h$ w: q- y( l2 B7 l7 E& n
- #include <ESP8266WiFi.h>2 E4 t9 ~8 _, i' D
- #include <ESP8266WiFiMulti.h>! {7 ~) [, n4 n+ Q
- #include <ESP8266WebServer.h>
8 D4 h) w; G* k% l - #include <arduino.h>
8 N9 F5 L( d8 B# [5 ~2 s - ESP8266WiFiMulti WiFiMulti;
; m/ l1 u) o! }/ K, N1 t - ESP8266WebServer server(80);
2 {& Z; g: _; b" Z$ [ - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";7 E* m% D* M/ d( H2 C! V" W# @
- ADC_MODE(ADC_VCC);
- _3 Z; F, T: G" K, N - void setup() {5 |& E3 J0 }& P! a! Q5 j4 b, ^
- Serial.begin(115200);
& z* r4 e& ]9 m9 V; J, a8 J - Serial.print("\r\n\n");/ Q& T! M5 d9 \3 r
- pinMode(2,OUTPUT);
, c; g1 A9 J) V - // WIFI
/ `1 ~) E4 D2 E% o/ E! W# [& w - WiFi.mode(WIFI_STA);
- R- r4 \2 X7 S+ `% R0 l0 N - WiFi.hostname("Sparkle");6 L% a4 i- ]5 \" s9 L* F
- WiFiMulti.addAP("wifi ssid", "wifi password");
E( x. k7 P% T- h; | v& | - int tryNum = 15;
* t/ K3 Z& O& a+ k0 f$ Q - Serial.print("Connect WiFi");" Y5 [! A; E- a+ Q- C( b4 y9 I0 }
- while (WiFiMulti.run() != WL_CONNECTED) {; Z) w! R2 J; a' v
- digitalWrite(2,0);
/ ^5 f9 M }" O - delay(200);
( ]3 ]! E- {* j- r1 M' x( M - digitalWrite(2,1);
6 A' [2 T# S% { T/ L' e( x/ L - delay(300);
5 ]8 i0 h) p, R- Q. R4 h - Serial.print(".");) p d: y( ~% g' ~- F c
- tryNum--;
; A, N" T, a' r - if (tryNum == 0) {; e. f* Z5 i. i
- // 1min
/ K3 ] P: Q: ^* {9 ~ - // ESP.deepSleep(60e6);+ N# T4 V( S% I* n
- ESP.deepSleep(0);) z- b' ~* B/ | _1 v
- }
9 f, `+ y4 O' r- S - } ^9 Z+ E6 h# }3 k% r1 H' m7 ~
- Serial.print("\r\n");6 q3 U1 p0 ^" Y$ H. o% f
- digitalWrite(2,1);5 x' `: b+ W: R* A0 {9 j
- Serial.print("IP address : ");
2 _- _6 T0 \; S0 d - Serial.println(WiFi.localIP());
% ~' |( D3 t: S2 F" w' G - server.on("/", HTTP_GET, [](){
5 N# m5 h$ S) D4 C! E5 | - server.sendHeader("Connection", "close");& T& k4 ~) ?& f. y4 U8 _. w3 f
- server.send(200, "text/html", serverIndex);
) x5 J6 R+ O3 M! z - });
5 b; ` k% \2 b3 k9 p6 F! @/ S4 {3 a - server.on("/update", HTTP_POST, [](){
+ \! d1 b) U( {1 Z8 @: c - server.sendHeader("Connection", "close");
* Y" W: ]& u. Y& b6 { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");+ C% @. M5 o1 ^8 i: B) W" P
- ESP.restart();) ]# D' Q8 O h
- },[](){
; C5 \3 V8 l- U. m% M. w. o - HTTPUpload& upload = server.upload();
4 D8 R" c* H! u6 A - if(upload.status == UPLOAD_FILE_START){
1 n- Y8 o7 D9 _ b/ C+ w5 B. e - Serial.setDebugOutput(true);0 {4 ^. n. E, I% g l9 w
- Serial.printf("Update: %s\n", upload.filename.c_str());
. m5 O: p$ B# l9 }2 k% r; m - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% F: x1 u {7 W$ U9 G - if(!Update.begin(maxSketchSpace)){
' Y- ]/ P/ q" Q* D* {7 X - Update.printError(Serial); c" M, R P5 ?( c
- }* w" v. L5 c7 d4 F
- } else if(upload.status == UPLOAD_FILE_WRITE){
. |" t! m4 N3 K - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% Q# u! S! `7 _6 D( n% W - Update.printError(Serial);, r9 U3 ]; W s: i, r. }* h
- }/ z: D1 w/ U' [/ _( a4 g' G
- } else if(upload.status == UPLOAD_FILE_END){
4 u# N' p( Z* j8 L' _" P - if(Update.end(true)){
0 t0 }9 C: G4 Q/ L" z - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
/ y8 ]+ I* G! S+ X3 G" r - } else {7 I1 Y! b7 S; L# ]) d6 n/ h7 t
- Update.printError(Serial);
8 X1 b4 E2 x& }/ r" H0 u E' I - }4 m1 Y/ a$ Z z3 r5 l# j
- Serial.setDebugOutput(false);
" \5 |6 P% Y" i3 E4 R5 K! i - }, t; x) J- K- m' b N) |4 z! [8 j& @
- yield();& o, _* ^" p- @3 Q; p, ^& |9 d0 u
- });7 j* Y8 z) c' k7 L
-
[, J* N+ \4 F- B+ t+ L3 J - digitalWrite(2,0);
7 f. _. ^5 F0 q - mainAction();) g( w" I+ n& r* m' k+ q
- if (digitalRead(0)){6 L1 [$ e% h* ~( Y3 T: T$ J: V
- ESP.deepSleep(0);1 {6 {% Z7 o* I, _# t/ ?0 q
- } else {6 i3 J7 r+ i$ n% \8 v7 C: D
- server.begin();: a/ n, R! l. L" X+ e
- }
4 `. R4 [! C* f2 k - }0 d" [9 l- ]" R ?$ r: d
- void loop() {
/ n/ [3 B: `, s6 T1 d - server.handleClient();
% B, i8 S4 _- r2 q- ~ - delay(1);
- |* e' _1 v3 V3 Y2 d1 g- R - }
# e- d# i9 r" Z4 g2 } - String doGet(String url){
' `# D" j1 Y9 G6 P* b. H0 V - if ((WiFiMulti.run() == WL_CONNECTED)) {
. }8 }6 k( z/ d - HTTPClient http;
" f: |' k- {- c: w2 X# x - Serial.println("[HTTP] begin...");# F# T Z7 ?& u1 g4 n- p
- if (url.startsWith("https")) { J% n' s9 j: S/ f% E' {
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; L' j$ S( M1 Z* m% A; K
- } else {" s7 [! a3 ]! Z! q7 J. E
- http.begin(url);5 f4 Z# h+ b( i9 B2 r9 D% W
- }3 m' s7 j/ M3 \, C* W: Q
- Serial.println("[HTTP] GET...");; M A: N% z* k1 I8 p7 g' j8 t& X
- int httpCode = http.GET();
0 k5 P1 p' u7 e7 m5 m - if (httpCode > 0) {! V3 P9 h5 |) Q' ?
- Serial.printf("[HTTP] code: %d\n", httpCode);
6 V/ w$ l0 J( c7 D0 ` - if (httpCode == HTTP_CODE_OK) {
. }1 F4 l b' S+ S - String payload = http.getString();
/ R8 i5 y) ]3 `" l - Serial.println(payload);' A, O; ^* m' b* w8 }7 j p
- Serial.print("\r\n");4 P j$ A& B9 S0 j" U1 f# e
- return payload;
& _8 u8 E" V n; \) s+ W - }
- ?# Q! H% e% N4 h. \: G& ^7 Y - } else {1 m+ @4 O/ X8 A" o& o3 M
- Serial.printf("[HTTP] GET... failed, error: %s\n",
' X! W2 Q+ r( O# _ - http.errorToString(httpCode).c_str());
% p. e" I0 C! k5 l - }' R0 V; Y) R* B: c4 H: q
- http.end();
. ]* b9 q! [/ I/ Y7 s% m @ - return "";
8 x! |' \$ `. N0 }% d$ v* ] - }
3 j7 E6 L& H9 a - }8 l0 @6 H, ?5 N9 O3 Z" l( j+ p
- void mainAction() {
X; F2 V `0 O" t - // 发送请求
7 ?( C$ A. z& D3 N, F - doGet("http://google.cn");* ?" {1 l& c& v8 O7 t
- }
* h( A9 i ]5 k! ]
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