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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)) J2 p1 d6 y# D; I$ @ v
- #include <ESP8266HTTPClient.h>
1 l5 e" Y9 f( R - #include <ESP8266WiFi.h>! E* i3 y: N J( j; d+ M
- #include <ESP8266WiFiMulti.h>
2 J5 g& V; u# C! V- ?, l - #include <ESP8266WebServer.h>
/ k9 f& {" G: i, b' B' E& ]2 ?9 \ - #include <arduino.h>
) Q$ `+ u( |; _; ^0 ]% k - ESP8266WiFiMulti WiFiMulti; k! I2 N. u- Q; ~1 E q1 k
- ESP8266WebServer server(80);
8 j0 T" K _- Z - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
. d$ P1 F+ P& h - ADC_MODE(ADC_VCC);
. @1 w/ t ?( D" V! v! I& |% H - void setup() {/ \6 \; l( ?! \0 W
- Serial.begin(115200);# A! c" V7 w# M1 K2 @
- Serial.print("\r\n\n");
9 U [+ _5 f/ k* S- W9 f, N! h4 k8 @ - pinMode(2,OUTPUT);
' b6 I$ g* o& A, e - // WIFI% @5 ^4 O" T$ ]9 B9 X" y* q% S
- WiFi.mode(WIFI_STA);
3 ~. |; a/ ]2 J. [7 l! I8 h9 k - WiFi.hostname("Sparkle");8 f4 w( b8 c6 X, B/ v3 e& R, D i
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ ~% h/ j R# X! l- ^+ R4 c - int tryNum = 15;
3 n1 k4 m2 b$ h$ ~ Y5 { - Serial.print("Connect WiFi");: z& u+ z% C* P9 p( F
- while (WiFiMulti.run() != WL_CONNECTED) {# C( }- I. O. ]( Z7 h
- digitalWrite(2,0);
3 S) R1 ^- X) q2 T. O4 W3 B - delay(200);
, w# m+ r9 s# s1 E, G8 S2 N! D - digitalWrite(2,1);9 Z& U8 ? p5 d8 l% g
- delay(300);$ E+ d. u# L7 u# w* i+ d! l
- Serial.print(".");: X) v5 ?7 j; ^3 Y9 u7 j
- tryNum--;0 C9 n0 d% B: r$ ~' g$ f
- if (tryNum == 0) {- e: U3 I, }9 o
- // 1min' t; _3 C' q9 H2 [* h, [7 D
- // ESP.deepSleep(60e6);6 S2 Y1 I, o) g
- ESP.deepSleep(0);. L- b8 R O8 N# _
- }
( a: z7 _% f1 }6 }2 a/ x - }% T$ C9 ]- w d. R+ B. Q
- Serial.print("\r\n");
1 X& N6 [2 I* e( n; ^% X& n/ E - digitalWrite(2,1);- A: i! V5 \( |: X, m
- Serial.print("IP address : ");
~" D' h4 e$ f - Serial.println(WiFi.localIP());+ Y" G( B; ~3 S V; k3 y7 r- t; j
- server.on("/", HTTP_GET, [](){
& B# a+ { l+ w( D W2 F - server.sendHeader("Connection", "close");
: H" r7 H+ a8 i) Q; d - server.send(200, "text/html", serverIndex);
+ R# m+ Y! G5 l. O! \5 O" P - });+ f& L" n8 l3 |$ m4 u, i7 F
- server.on("/update", HTTP_POST, [](){# q$ v4 \1 T( { S8 Q6 t$ E
- server.sendHeader("Connection", "close");% f* H ?3 t6 f4 x
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) d' U: C: j+ e1 D7 O - ESP.restart(); }( W# k7 r, Q5 r# S5 R- y
- },[](){
/ n* ?0 n/ e N5 }! n& Q- B9 j - HTTPUpload& upload = server.upload();
* v4 c5 a$ z4 X/ d7 Y" C - if(upload.status == UPLOAD_FILE_START){
2 v! x/ P1 k0 _ Q' n p! q - Serial.setDebugOutput(true);8 K4 L; I/ U, }3 |: b: ]- u
- Serial.printf("Update: %s\n", upload.filename.c_str());
# x" n8 w- K. C) N; Z) X: i" k1 M - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;' w% W- V& D7 H0 S: T0 V
- if(!Update.begin(maxSketchSpace)){6 O, ~* ~2 E$ \9 S& `4 @- `
- Update.printError(Serial);
; U7 x1 ^% u4 M6 c# a - }' U6 g1 ]% D9 U/ U
- } else if(upload.status == UPLOAD_FILE_WRITE){8 S( U# A( @0 S
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% ?6 A, c5 p" q; z7 W2 j - Update.printError(Serial);
& C9 V+ K- |; t& X: e" ] - }
! J6 o) z! |- j! r - } else if(upload.status == UPLOAD_FILE_END){9 ?( o$ l) C$ s' a; i/ G8 Y, _
- if(Update.end(true)){( M" `7 k/ D$ P4 I3 @# s. N
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);2 W8 s" i7 y P, u4 }5 ~/ ?/ i) q' a
- } else {
1 s7 s+ C. a2 n4 ~% a, E - Update.printError(Serial);
4 s5 S4 P T6 }3 G, X. I - }
; b6 {% O& c) A& T( ?, f) m - Serial.setDebugOutput(false);) n. s/ r1 K0 D1 u7 p0 G; V
- }1 } `' G9 V0 @) k2 |. ]5 |# z1 E& T
- yield();& v X: |5 _! B9 L
- });4 _6 X& _" b! o6 h7 P5 ?& n. f6 `
- 3 C2 P3 ]( \) Z0 K. S, e. e
- digitalWrite(2,0);, @# Q2 ? }. A" P' }' s* T
- mainAction();( f& H# u9 p. v; i. @
- if (digitalRead(0)){+ ?" K, n2 k; j5 M2 D/ O6 A) @
- ESP.deepSleep(0);
* [2 Z: }7 H7 D5 M6 W: l8 G* Y - } else {
! c* I# ^: L& `" ~+ c - server.begin();& o! W- g7 P8 v! |" A
- }
- p1 m0 A4 k- c8 G$ h - }
: A; ]4 b* q1 S6 S$ S - void loop() {
8 A9 l6 P2 P; y+ Q1 ~9 M2 g; _, O - server.handleClient();* k* d; }" _- T8 U/ }% J
- delay(1);
# V5 S' p: }1 U \* N) ~6 I5 B( u5 | - }
# K; t: c, Y2 K, p5 s$ h! S - String doGet(String url){$ I' k: m9 }7 ]1 `6 U* `, X) I
- if ((WiFiMulti.run() == WL_CONNECTED)) {
1 h' b2 | |# L; P; \9 ` - HTTPClient http;' U# `0 Q+ z5 I' \
- Serial.println("[HTTP] begin...");: Z9 m9 X0 K( f( K' u. H1 Q4 ~
- if (url.startsWith("https")) {
4 `) p# a9 o/ R1 A8 x+ B; M - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
+ [& P0 _* \/ v2 h8 S5 B - } else {
# `3 g* i# ^8 I - http.begin(url);
* Q4 Q1 N2 T+ n$ s& @. J - }
i/ g S; y p. h# B- V/ |( ? - Serial.println("[HTTP] GET...");! f% r& X4 `; U% M
- int httpCode = http.GET();5 H, L$ Z4 |/ t7 l$ a
- if (httpCode > 0) {
$ C; O1 R1 Y5 y8 w$ v - Serial.printf("[HTTP] code: %d\n", httpCode);) l; ^* b$ `( Z
- if (httpCode == HTTP_CODE_OK) {
1 v% R; I. O; q6 |2 K4 k - String payload = http.getString();
2 V2 S0 V0 I3 a, M1 u - Serial.println(payload);
+ ^$ H' Y& h5 H A0 { - Serial.print("\r\n");( x3 r1 z% k' z7 P( P' v
- return payload;/ O3 c% I$ \$ L
- }
. p# r; K5 V' M+ z - } else {4 L5 Z' h( o2 k) ?9 c! S+ Y+ ]; a. g
- Serial.printf("[HTTP] GET... failed, error: %s\n",0 i( K, y: Z5 s T: f$ v5 l
- http.errorToString(httpCode).c_str());
4 e: t5 B2 s, j8 j" ?- j" `5 Q% h - }+ A6 d7 F& k" `" A5 g, Y2 M. ^3 M
- http.end();0 v7 o% Z( i @. s
- return "";- i! @( g$ V% R& ]/ O; j
- }
. `9 ?& I6 N9 V+ U$ ^7 {& ?- { \4 V - }
% o1 i! q) Z' f7 e# G" c - void mainAction() {
& P" z2 K3 t8 B- K* l; b - // 发送请求
+ o% ?8 P0 U1 O! j - doGet("http://google.cn");
# L; Z$ Z, h% h3 W - }- `( ~4 Q8 ^' s- D- T) [& ^; k
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