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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)7 o( U0 u; P! \, K# m& i, g6 W
- #include <ESP8266HTTPClient.h>
$ s! S+ I! d' B4 L: o2 o - #include <ESP8266WiFi.h>& D* e1 @6 J! k8 t4 x0 F2 W4 }1 z
- #include <ESP8266WiFiMulti.h>
$ a# X! a: ~) G* K - #include <ESP8266WebServer.h>, G }% M j9 D0 V3 T* b
- #include <arduino.h>
( d" `3 P& ^* i) x* o( G - ESP8266WiFiMulti WiFiMulti;- z. p/ f0 K# Q9 M* Z4 E( p$ K
- ESP8266WebServer server(80);
, e: s% h. p U7 g9 e' c; C - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 O9 A, }. `# C$ A* w/ P7 K6 ]8 X
- ADC_MODE(ADC_VCC);
) g0 q: f) m* F/ V1 i+ X9 a - void setup() {
2 ~1 n% f, \& `+ e2 F& Y: N C+ H - Serial.begin(115200);
- R- k% `; i$ N2 q, }6 ] - Serial.print("\r\n\n");) M& I5 m8 a5 U: U
- pinMode(2,OUTPUT);
' k0 G4 A( W [& a - // WIFI+ X/ ]$ a' F9 J, V3 \8 H6 d
- WiFi.mode(WIFI_STA);/ T2 Q$ k$ f5 I1 t* w
- WiFi.hostname("Sparkle");
. o9 \# H% s$ \) t) ]# j) H w% u - WiFiMulti.addAP("wifi ssid", "wifi password");) x' f0 B5 L/ K8 q
- int tryNum = 15;3 ^0 a7 \& D) V$ r) U1 R
- Serial.print("Connect WiFi");: i8 \2 y; }* ?9 M; P7 v$ N
- while (WiFiMulti.run() != WL_CONNECTED) {
( ^' o0 f9 s, v& E1 j' n* C - digitalWrite(2,0);
. }7 x# o% L9 X8 @( b* e - delay(200);: @6 s+ b+ \9 a& j, s
- digitalWrite(2,1);
" Y4 b) q; w# S4 A' e - delay(300);; Z/ Y' x G$ @0 B
- Serial.print(".");$ G* T3 d. C7 z
- tryNum--;
7 e5 \0 h. h3 a) {: A - if (tryNum == 0) { f) C4 b) d/ Q2 c3 S! p
- // 1min$ ]: M( u( w* O0 h7 p
- // ESP.deepSleep(60e6);
/ b- z2 F/ ^- y" F# K7 T3 z0 m% [) _ - ESP.deepSleep(0);
9 Y. f# l$ Y1 j0 x8 Z - }
, O5 c1 k1 S9 z - }
) R' e" P0 P! H" h2 L7 R - Serial.print("\r\n");
, `7 ^5 z9 P: F4 m1 O+ N- H - digitalWrite(2,1);
! v. D9 y* g/ H J* K( K- a: h' z - Serial.print("IP address : ");" a/ y. Z1 X; k
- Serial.println(WiFi.localIP());
2 T) C; l% B9 I( D# j0 J - server.on("/", HTTP_GET, [](){: N7 X& I, V+ E
- server.sendHeader("Connection", "close");. H( U) a1 r0 I7 L3 ]% V/ B/ W" Y
- server.send(200, "text/html", serverIndex);
$ e7 o2 ?- R. Q& j. ` - });
0 l" M& A( H" z$ x4 ~& q4 Z( W - server.on("/update", HTTP_POST, [](){$ T, t& ^& }2 Z, w$ s5 i& d4 D
- server.sendHeader("Connection", "close");
. ~0 @4 A( t0 t: ? - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 _& w& p3 U. [1 Y - ESP.restart();
/ c- N2 u0 U/ f; q9 S* g0 d - },[](){) ^2 O% ~6 E, u7 e" |
- HTTPUpload& upload = server.upload();+ o1 J1 @. P- W* g& o* ?
- if(upload.status == UPLOAD_FILE_START){3 k5 I z+ O& Q" j( }, U* }9 b
- Serial.setDebugOutput(true);
* b s3 z( ?8 K( t e - Serial.printf("Update: %s\n", upload.filename.c_str());
V; O6 k" _& Q. ^! ]6 b - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% f+ q. o3 V. c6 u - if(!Update.begin(maxSketchSpace)){
6 F+ i* A% ?' x P4 X7 @) q# @ - Update.printError(Serial);
9 B4 x& m: a5 H: e' @ - }
& q) D% z' D; Y$ F - } else if(upload.status == UPLOAD_FILE_WRITE){
6 }$ b* L) ]" K& t$ s% [8 }/ N7 G - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
# L' o: G$ T/ r6 p - Update.printError(Serial);
" H4 C" X! m8 M& R, G) v - }4 q, w, Y( ~5 `7 Q' R
- } else if(upload.status == UPLOAD_FILE_END){
; c8 c8 o0 t/ O, w - if(Update.end(true)){2 ?0 i; I9 Z6 X: F, K3 |7 F! l6 L, U
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
% D* A) P5 [9 w8 `1 o" S# W - } else {6 w/ }9 y" M3 T4 h4 F6 [9 q; q4 V5 \
- Update.printError(Serial);, j, Z: Y( j# \1 a0 }9 p" C
- }
8 N" W# w+ v" s0 Y# c - Serial.setDebugOutput(false);" t/ U1 ]) O7 t! L7 T! m
- }
% O' Y2 v' L# ?% Q5 X$ q6 w2 l - yield();6 ]! ^* O p6 S, n. R
- });' |2 D; m( S4 z
-
* I! x: B1 G) o. o - digitalWrite(2,0);; u. h6 n& x) Q
- mainAction();* M& p; g! M+ V8 u1 Q7 ~: E; ?
- if (digitalRead(0)){( J/ ?: W9 A. N! D8 D$ m
- ESP.deepSleep(0);3 `, s2 ]4 e$ c. S$ `$ {# }
- } else {
8 V* a4 A+ G* ] [) X; B - server.begin();0 k) l" p* a# U8 R+ s% Z2 \: C
- }
( K3 g1 m" D8 O! E( g# X9 @- f6 @ - }) H7 A4 C. ]9 _3 s U% f
- void loop() {2 }: m- [8 |8 h9 w W9 R
- server.handleClient();% c3 k/ J. h p6 ^" m
- delay(1);* t8 [. W3 _7 I
- }7 g. [5 m5 Z9 u
- String doGet(String url){5 ^ a' K. ^/ w! W, d
- if ((WiFiMulti.run() == WL_CONNECTED)) {
; f: L0 [ i. D* t) k - HTTPClient http;
" l2 m) N; {. E1 I6 w* s; p - Serial.println("[HTTP] begin...");
/ |% @ f; y* j) q - if (url.startsWith("https")) {" l# p/ N) S7 v8 F8 Q1 ?
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 ]8 S2 w k. a2 }
- } else {
# P3 v; d. X$ W5 Q1 | - http.begin(url);
! D" N$ \3 h H+ h/ Q F! _ J - }1 y/ _% }8 ?6 E, A3 |
- Serial.println("[HTTP] GET...");
, q& Z$ P. R: J5 ~3 ?7 I - int httpCode = http.GET();
% w1 t) X' f) G8 N0 ], K/ y - if (httpCode > 0) {7 F. c, |6 g) y# X9 z7 w/ x/ K
- Serial.printf("[HTTP] code: %d\n", httpCode);" p+ S1 S+ a9 d1 J% O
- if (httpCode == HTTP_CODE_OK) {) h- |% h- V( M; e4 o
- String payload = http.getString();! K1 U3 X; ]4 j; t! ~
- Serial.println(payload);+ F9 s3 q: `, W9 l
- Serial.print("\r\n");
; _ T% m. j. e7 B - return payload;5 W+ P, e% K: d
- }
+ `) X# x1 h; \8 Y - } else { M% u+ \0 @5 \" s6 ~5 g" v; g
- Serial.printf("[HTTP] GET... failed, error: %s\n",) i# v1 F9 R5 j, I0 z) ^* u, z3 \
- http.errorToString(httpCode).c_str());9 f3 R! Z" h* q: Q2 B
- }
" C ?4 n7 n+ R! E5 \. v8 J - http.end();
5 T3 h2 p; [( o; H6 s/ J5 g - return "";4 h1 P Z. K, Z
- }$ p7 D! V2 x9 q y2 N7 W. Y& o
- }
, k4 q8 \! c% H% ]% ?( {% g - void mainAction() {4 u. t$ Z$ r3 X( a5 n" \) W
- // 发送请求8 v& m! {& b; L3 n& Y1 ~# j; z
- doGet("http://google.cn");
; o6 _' h# o% n" X' r' M8 h8 P - }
% s% E ^; @* f+ d
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