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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)
, h- R: a$ Y' l, Z- #include <ESP8266HTTPClient.h>; o: N: j' ^) F
- #include <ESP8266WiFi.h>3 C+ X4 ^+ S7 K: G
- #include <ESP8266WiFiMulti.h>
+ }7 Y! H/ x0 [0 \8 l. K& X - #include <ESP8266WebServer.h>8 G4 a. b9 v$ q! e7 v x' x
- #include <arduino.h># x, H, p+ g0 t% T& J+ f" w
- ESP8266WiFiMulti WiFiMulti;
" M8 ]" m: n& T9 {* }6 z( P! I4 H2 ? - ESP8266WebServer server(80);2 O M) D5 M. i
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
) X- K' V- n& T; ` - ADC_MODE(ADC_VCC);. k1 e e2 a1 G: u) k& V
- void setup() {! C. g% x) z9 E3 ~. _3 S; H H
- Serial.begin(115200);
. B3 s9 G; p, Y! }9 E# T& w - Serial.print("\r\n\n");- m3 k7 k: }0 ]& n% t& d
- pinMode(2,OUTPUT);5 D$ P' u1 k. I& a
- // WIFI
9 ]% N8 }) U$ B7 P" f ] - WiFi.mode(WIFI_STA);
+ p/ |" k. i1 Z7 F8 V2 [7 z - WiFi.hostname("Sparkle");6 T _1 v6 ^1 @+ X/ E3 Q8 Q. `* N9 ~
- WiFiMulti.addAP("wifi ssid", "wifi password");
6 Z5 o& e* `9 K/ k5 ~6 @ - int tryNum = 15;
( h& d5 E6 e" K$ u% W+ z8 S - Serial.print("Connect WiFi");
: O# c) J e% t# ?% R6 H8 V - while (WiFiMulti.run() != WL_CONNECTED) {' u' R2 m2 }( X2 q
- digitalWrite(2,0);/ k0 H: Q9 r6 {& \6 t& }: m
- delay(200);9 z; b1 y' G: `' H6 R- j$ x/ ~
- digitalWrite(2,1);7 g3 ~3 `- @1 d, i' @
- delay(300);
. R% o; q* P1 v! d9 W' [& l - Serial.print(".");
3 c0 ^- U/ w! E/ i/ h) C - tryNum--;
9 K; [# ~: A) \+ d- b& r - if (tryNum == 0) {
) `1 e9 M1 j& \5 `5 j/ [0 P - // 1min
( P" S. R/ q: T0 M( i3 { - // ESP.deepSleep(60e6);3 L4 j4 A) z( {
- ESP.deepSleep(0);
3 k1 D5 r7 U9 | - }1 Y- Z' n' `* f
- }
: R6 ^7 y2 N* t( A5 b5 P1 C - Serial.print("\r\n");
" r% g" Z6 ]/ E5 @6 |! R, O% { - digitalWrite(2,1);2 h& b2 R* \8 F. ]4 Q0 b8 {! F; I: |
- Serial.print("IP address : ");
: L- P, Y' u9 T0 F$ Z* ~0 K - Serial.println(WiFi.localIP());9 q7 W6 N0 D( K& m: ^ b; k: d
- server.on("/", HTTP_GET, [](){ q3 h! F* D2 }# M: } P8 w
- server.sendHeader("Connection", "close");
! T6 n( H8 `7 d: f' t8 F) R, x - server.send(200, "text/html", serverIndex);
+ [2 ^. j3 t' n8 Y6 c2 ^$ r$ b. U - });( X4 _" O* F7 s6 K1 i, Y! w5 R3 K( u
- server.on("/update", HTTP_POST, [](){6 C; R( u# j' a7 J" R
- server.sendHeader("Connection", "close");
6 S* U, y7 y+ `7 q9 N' w+ C - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
: g* s# q$ t2 ] - ESP.restart();
7 x, B% c/ I7 S* |* Z$ P - },[](){# `- \& D4 z" P1 Z9 x6 D
- HTTPUpload& upload = server.upload();' x, z7 j1 j N
- if(upload.status == UPLOAD_FILE_START){9 l0 H$ ^9 q- G1 h
- Serial.setDebugOutput(true);% u# @$ x9 G2 n) [6 X7 U% c
- Serial.printf("Update: %s\n", upload.filename.c_str());# g: \6 r, q b; _
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
. S8 a; n- k' R+ {1 W* s/ K - if(!Update.begin(maxSketchSpace)){2 ?- A/ l" k. M! @, t$ `
- Update.printError(Serial);0 }# W; U2 C. I. X: b
- }
! C; X' I5 `& i0 @ - } else if(upload.status == UPLOAD_FILE_WRITE){
- v* W0 X. b! g8 J( K5 T - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 @9 [7 ~/ s. L9 F, t5 x5 f/ a - Update.printError(Serial);
5 M; A7 a9 }4 w6 G+ n - }" M$ Z$ D, d' E; w0 R
- } else if(upload.status == UPLOAD_FILE_END){
( G, j, `* |/ [4 p& k' f' f6 T - if(Update.end(true)){9 q3 F5 J! ~. i: K- H9 A
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);3 h/ @- N7 O$ ~1 W
- } else {4 o1 ~! V" q- ~3 @9 w- x1 O
- Update.printError(Serial);
9 x* E& R1 i; N - }
: {5 o; E5 S9 E - Serial.setDebugOutput(false);
+ S4 ]/ J' P. L# t" j; y. Z+ a - }7 r7 Z- G7 R7 k, ~" E
- yield();7 A" x1 m* y+ g! f$ L. E) E
- });
9 `: r7 [! z6 Q - ( \# q; g* w" |8 D
- digitalWrite(2,0);; \8 r( n! ]1 L4 l: I& g
- mainAction();# Y6 f+ S% d" k. i. ]2 k6 P
- if (digitalRead(0)){
! K9 P" p! R/ R1 A+ ]6 Z9 p - ESP.deepSleep(0);3 @3 x5 r7 l, h+ k
- } else {
- n1 E" j6 i. D0 T& P - server.begin();
8 h' ^( n( J& ^" e - }
- w: } y3 P- q' d, N% [ - }! p3 T: p# ]+ y4 l7 B' K
- void loop() {8 X; K7 x0 \* Z
- server.handleClient();
5 I( l7 s2 g4 l2 h' R. V - delay(1);; E/ F) f& u! E B5 J
- }
5 F$ |" Y* E R# y" l: Z3 G6 i& a - String doGet(String url){
0 K) p7 r. b# F9 f. @ - if ((WiFiMulti.run() == WL_CONNECTED)) {* n; b1 {0 D3 f( m* j
- HTTPClient http;, Y& y2 R- T- N, }
- Serial.println("[HTTP] begin...");
4 l8 m8 G3 i( i7 a - if (url.startsWith("https")) {3 G h! P) {3 _( [* p3 U
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 M6 a" K! ~& N4 L8 c - } else {
" O- @7 t4 [0 O; R/ E, j7 }2 d5 T5 W - http.begin(url);
) O3 K2 n4 ~5 O N, m2 A - }' V0 B$ [3 K- S" |# d6 U% s' ^
- Serial.println("[HTTP] GET...");( V' o! m) ?1 X. `+ D' w9 g: ^
- int httpCode = http.GET();; J# X7 z" u) g" h$ Z
- if (httpCode > 0) {" d2 k$ s. ^9 h( @$ U4 r) g: W5 @
- Serial.printf("[HTTP] code: %d\n", httpCode);4 |/ [$ V& R9 C& T/ s# m
- if (httpCode == HTTP_CODE_OK) {% D) T, c! q- d- s
- String payload = http.getString();
7 W: v7 _$ ^; Q1 ]& ~) D" H+ c - Serial.println(payload);" U: G" F& H8 D; |# K8 q
- Serial.print("\r\n");
* g( |- ^* ^3 J( U$ v3 a* J - return payload;( [( p( y( h3 o' ^) s- w
- }
7 {' U+ x! }+ w& W9 d \! U9 a% a - } else {; ?3 U$ e; w4 k5 g% S
- Serial.printf("[HTTP] GET... failed, error: %s\n",6 n1 `. I" X* w- l6 g1 E! K
- http.errorToString(httpCode).c_str());/ l# j8 ~5 v' D+ j, Z
- }/ v [9 e, O+ y: p4 G/ g
- http.end();- z! T: q/ \+ O$ @' \
- return "";! ?, v& a7 T9 v, x7 p3 R
- }* l+ ]5 T, o+ K3 _9 U P4 ~
- }
; Y1 G3 Y, r* H7 q/ y - void mainAction() {) l6 g& ?; H8 M( ?0 g1 H
- // 发送请求. O. q! Z8 w. I- t
- doGet("http://google.cn");, J% ]5 ]" R2 I
- }$ G9 M) ?9 o; L9 o9 ?( r2 Y" _
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