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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). b5 C6 h& C4 W1 e* y* n
- #include <ESP8266HTTPClient.h>
L' S- D" O7 n; [; L - #include <ESP8266WiFi.h>
6 A2 y: f, |6 V4 v' _1 g' E4 ` - #include <ESP8266WiFiMulti.h>
/ t& z8 ^: l( y - #include <ESP8266WebServer.h>' m# P f0 }- K' ~2 \5 h
- #include <arduino.h>
/ w0 s4 p5 k+ H' [1 ?5 k - ESP8266WiFiMulti WiFiMulti;& T, G; O4 B. e2 r% M0 m# U
- ESP8266WebServer server(80);! D0 w2 Y `3 i5 B" j
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
3 v; H3 b; {" m z" ?# p - ADC_MODE(ADC_VCC);
* w, \' j, R e3 | q - void setup() {. w1 r( y$ f, g. E2 G5 T* l% S
- Serial.begin(115200);
/ l$ E7 c" D4 ]: \0 H* ^ - Serial.print("\r\n\n");+ w: C( ?6 W0 |& [1 Z
- pinMode(2,OUTPUT);
7 q' E8 ?3 C9 x1 v/ I - // WIFI
# \5 O# A" e) U2 O1 l. ~ - WiFi.mode(WIFI_STA);6 r5 D( O/ S3 p" u
- WiFi.hostname("Sparkle");% U6 k1 W3 G K6 m" h- \
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ Z! h2 i- c2 S: a+ } - int tryNum = 15;
0 k4 x) e: r$ U: Y - Serial.print("Connect WiFi");, r: m& m5 V% B4 G6 G
- while (WiFiMulti.run() != WL_CONNECTED) {
0 f h$ H$ o# b5 p - digitalWrite(2,0);7 J1 W' \$ b/ J
- delay(200);" b) ] i- O3 ?3 F+ W% d' X. f
- digitalWrite(2,1);+ ?& u8 Y# ?) g& n) Y+ |
- delay(300);8 N1 I- p3 \+ ?2 v; t. ?3 _5 w0 |
- Serial.print(".");; [! j8 M8 i. V
- tryNum--;
. s- a+ ~; i) O0 O0 g* m - if (tryNum == 0) {# B" |# J% y! ?% J F" G
- // 1min
0 b/ h6 ~7 _6 R' z$ b - // ESP.deepSleep(60e6);
: n; [, @% ^/ U9 B! u% J, P4 Z5 \ - ESP.deepSleep(0);
6 F& c2 Z5 G- h% m - }4 @3 U2 h+ b9 I9 X; s' L' c
- }# y& v3 K8 m8 c' g
- Serial.print("\r\n");
5 R( ?! k1 H& {: }0 C& Y3 _- o' d; ] - digitalWrite(2,1);
, O. t6 H: V* u* T - Serial.print("IP address : ");2 O; H" X- ?) L
- Serial.println(WiFi.localIP());+ ^6 y) J) R& N3 z5 |+ z. A; b
- server.on("/", HTTP_GET, [](){; w- @7 `2 \/ U3 w# N* ~
- server.sendHeader("Connection", "close");* U3 V. D# T( i3 }) U
- server.send(200, "text/html", serverIndex);9 ]6 n1 J( A+ [8 D
- });: S$ m/ P, B+ \7 @% G
- server.on("/update", HTTP_POST, [](){% M, {- l6 l7 |( N$ \ D4 ^
- server.sendHeader("Connection", "close");# U, B' U# N# I; O/ o' P4 w
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");3 |8 S/ a( x! n2 a: S7 u& I
- ESP.restart();4 A: y4 X9 m9 t: j
- },[](){4 s& P1 O5 Q3 L
- HTTPUpload& upload = server.upload();
. w Z1 ?( v8 Q% r! Q& G& m5 A$ T - if(upload.status == UPLOAD_FILE_START){# {& k2 r: @2 v' c
- Serial.setDebugOutput(true);
& t' i; C2 h3 C; x - Serial.printf("Update: %s\n", upload.filename.c_str());" S. ?( V+ d# ]* g! z
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
7 K5 P8 ]) D5 _ - if(!Update.begin(maxSketchSpace)){, f& [' s8 K ~. g4 [
- Update.printError(Serial);, \" H6 s, P1 [2 p( O
- }8 }3 M, w6 [+ w
- } else if(upload.status == UPLOAD_FILE_WRITE){
* c& M& }5 y+ a2 `: y6 W. E/ O+ \ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){4 N& w6 p: U/ ]2 I; r) u9 F) l2 |% c
- Update.printError(Serial);
3 b& N& Z r4 P# |0 t; a - }1 N4 m) A9 _6 [9 v: L2 G. e1 c+ @, A
- } else if(upload.status == UPLOAD_FILE_END){
2 o+ l! W/ c3 W- t( W - if(Update.end(true)){3 k+ [/ j$ b6 ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
" {7 d9 I/ t$ h7 W5 N0 }) s9 ` - } else {
6 S5 z' ]* M/ V( i - Update.printError(Serial);# [5 K& A" p; v1 K! X1 k4 _" q
- }! t1 r' y; \3 d1 r" Y5 g& v
- Serial.setDebugOutput(false);& i9 d& \. t3 u) |7 ^1 [$ k7 l
- }/ A& F f' t- s' S
- yield();- F F H2 M+ P
- });
) E: Z% e, }& L+ G -
% k1 J( m- V, C6 i" z# x - digitalWrite(2,0);
( x4 K4 X; V. W% K7 R' a P - mainAction();4 v& o( r- Y% @2 f* E% \2 _' Q
- if (digitalRead(0)){
: H" D2 O- Q3 o. x% ]& Y$ {9 i- C - ESP.deepSleep(0);
4 f; J% I E; S) F - } else {
! t: w$ P- ?. W- e) v5 V8 y* n - server.begin();
8 U+ E' Z$ F" v) n% m% r" G' N+ x - }
U* R" a" k `% P - }% s, A# a5 P. N1 X7 B$ ]) c1 n
- void loop() {) M$ z' u [- Y7 S& x
- server.handleClient();
5 Y; \* h J& P4 ^3 v$ g - delay(1);
3 W8 T+ H- h- V4 L8 J( u - }
; A0 }; i9 q2 X+ ^ - String doGet(String url){& j- Q- E/ G3 w1 `
- if ((WiFiMulti.run() == WL_CONNECTED)) {0 Y1 w" X3 J$ Y' j7 I4 V m
- HTTPClient http;
+ m k8 w$ H: l4 t, Z - Serial.println("[HTTP] begin...");
* Q+ B U: s7 t T - if (url.startsWith("https")) {
. r2 R* O5 _( y* j& n5 x - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. D$ X4 M8 w$ k7 O3 I" F, O+ c - } else {0 k/ s: I- @7 {. O
- http.begin(url);
0 s) C; Q% l1 n& x1 h - }, q \8 r7 ~) k9 N$ b
- Serial.println("[HTTP] GET...");) |* ]' j7 ?* \- D* c9 V" u' M
- int httpCode = http.GET();
2 W( K8 l8 S. ~4 M" h% d - if (httpCode > 0) {0 U' x- x8 R+ }+ V
- Serial.printf("[HTTP] code: %d\n", httpCode);
0 }' b, Z+ w, B" i - if (httpCode == HTTP_CODE_OK) {% [: ~( J: M% N# j0 N( n, J+ K
- String payload = http.getString();
4 T6 L. V3 x" T! Q9 B3 @ - Serial.println(payload);
. {& n. h* x. O5 ]" m - Serial.print("\r\n");" f# R+ E G0 j. m/ R+ d/ q5 h% P
- return payload;& Z: m2 i* k6 h6 n" a/ q0 W5 V0 U, n
- }
/ W; g) x7 G& E$ f - } else {
# N! v2 S7 g, |0 ] D/ ` - Serial.printf("[HTTP] GET... failed, error: %s\n",7 @/ ~+ Y" w4 P$ T8 ^
- http.errorToString(httpCode).c_str());/ A2 d3 E& w! J1 O1 y
- }# w# h" H) l: k* _
- http.end();
/ b1 d A+ k# A - return "";5 A( X4 y6 r" U% @, [/ Q
- }3 M* d* m- I/ F2 u" Y' S
- }
1 m$ h' ^' s5 C8 Q - void mainAction() {
4 }1 o: J/ m5 x1 U$ K" g - // 发送请求& ~* _- n1 s0 L" b( [1 V
- doGet("http://google.cn");
; ^' T9 D9 E0 L: Y! l5 M6 a& O) c, Z( o - }
k1 F( o3 H F3 a$ ^
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