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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)
; \% m1 h/ R; p! f0 n7 |- #include <ESP8266HTTPClient.h>( G" s2 p! I6 t m
- #include <ESP8266WiFi.h>: p* [9 ?1 Q( j( Q. B3 o* V1 |' U( [
- #include <ESP8266WiFiMulti.h>5 l" p: F' ^; R; x7 p3 c
- #include <ESP8266WebServer.h>
5 y4 |% S3 a5 V/ I9 N: C; P - #include <arduino.h>
S8 @% }8 d+ e - ESP8266WiFiMulti WiFiMulti;1 u8 Y K6 {7 Z; k
- ESP8266WebServer server(80);4 t P6 m6 @9 O: |9 o5 c9 X; _
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 i! }! B- h; B& V. w, `* K
- ADC_MODE(ADC_VCC);
4 @+ ^3 N& Z% t7 G) c& I8 M) `4 V - void setup() {( P3 B4 l( d7 @ D" C% P
- Serial.begin(115200);
" J/ l* }0 e1 c1 C5 @6 b1 c4 F - Serial.print("\r\n\n");
% W7 _8 T$ o3 x! z% r8 E - pinMode(2,OUTPUT);- T# d, s1 q$ O4 a; \
- // WIFI% @1 X. p( m/ {7 \
- WiFi.mode(WIFI_STA);3 N; f4 W9 E' G+ j3 {9 O6 f: p
- WiFi.hostname("Sparkle");6 f+ R# |! Q5 x) i! ?: W" E+ t
- WiFiMulti.addAP("wifi ssid", "wifi password");9 q5 H( @# j! _4 E/ v
- int tryNum = 15;4 S/ f( U( J- G4 K: r, \
- Serial.print("Connect WiFi");5 ], ^3 g- x$ n( N
- while (WiFiMulti.run() != WL_CONNECTED) {0 a; Y, W1 z& o# F! z
- digitalWrite(2,0);
: x: g$ ~# ]# F$ ~+ u - delay(200);
+ f! S8 O8 \% B* u0 w/ Q5 I" C - digitalWrite(2,1);
0 J9 s1 j# [6 h, M, F - delay(300);
' q: C( q) H$ g! J6 [1 [' k - Serial.print(".");
+ A% T& D6 T" ?3 h - tryNum--;1 n; _8 V) H! T" V, ^% @
- if (tryNum == 0) {
# {- d+ h( K3 k& O$ ~7 f o7 { - // 1min2 L6 D6 I$ d! S6 U$ J8 ]* p( B
- // ESP.deepSleep(60e6);+ O1 K* L$ H( L" Z
- ESP.deepSleep(0);
# b3 t d3 H8 U" i7 a - }
) `. C+ m. k9 c6 G0 L - }9 ^% `: A5 [" v; h( p# t: s
- Serial.print("\r\n");
; v8 u: m- j' m n - digitalWrite(2,1);
6 }. s; j& {, O" A! e8 M- P9 X' ` - Serial.print("IP address : ");
/ d) t( o4 k0 x% A" R - Serial.println(WiFi.localIP());
! o% i& K+ |7 p - server.on("/", HTTP_GET, [](){8 ^$ w) L; H. B M0 n
- server.sendHeader("Connection", "close");
! D" [! I: a4 p - server.send(200, "text/html", serverIndex);
8 Q' ?( m' C8 W, F - });
) G. l8 O; N2 H* q l - server.on("/update", HTTP_POST, [](){
9 f4 h8 \! ~: O7 A1 v* u4 o - server.sendHeader("Connection", "close");
7 M+ T6 I/ U# z( d3 G- N - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 X1 l4 y9 M( Z6 B% W+ ] - ESP.restart();. X% T3 A; ]' R9 ?" Z$ C
- },[](){
F6 Y2 D! @1 H( v, H! d - HTTPUpload& upload = server.upload();
5 W5 X4 d$ l7 [. f - if(upload.status == UPLOAD_FILE_START){' r. F* y$ f! |, |
- Serial.setDebugOutput(true);4 P" i4 e! c' y: v8 N
- Serial.printf("Update: %s\n", upload.filename.c_str());
0 O9 L! t) B3 _' B - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
1 W# C9 a) A* ]) x - if(!Update.begin(maxSketchSpace)){
, O5 q6 U Q8 t, I" z - Update.printError(Serial);
- s0 l. V- x a# y. n7 Z - }( U7 Y. ?; p! ` Z- V. g. m7 {
- } else if(upload.status == UPLOAD_FILE_WRITE){6 w; P- b) c" u$ Z
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){8 g" N0 p! ~9 M# e$ `$ c% X
- Update.printError(Serial);
k( c8 X% ~* K. b! o - }
- j6 }2 c% p/ Z# ? - } else if(upload.status == UPLOAD_FILE_END){; s% o* x# E0 f( a |7 U* h1 A3 |2 H4 E
- if(Update.end(true)){
/ H( U- A4 h2 k8 U& t8 G2 }7 M - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 W# l! J& T5 ~3 K/ \ - } else {# l" T) h0 E4 U. @
- Update.printError(Serial);5 B2 l% g* ^3 x: C" b
- }( {# n! m) r$ o, j
- Serial.setDebugOutput(false);
9 _7 L4 j7 m, D* q$ A4 j O% V - }& T! y; b' V; x: \$ Q5 N/ h
- yield();' m. z0 E; |8 q: a, f( v- V
- }); b1 T( j, D# |, B
- o; z4 i- [% V3 a
- digitalWrite(2,0);
; h: c7 B# {7 f1 w' [: p V! ` - mainAction();! `' M" f. _- r, c7 f# D
- if (digitalRead(0)){, {$ f4 I& C8 y! Q- A
- ESP.deepSleep(0);
( h- i/ T i1 R - } else {
7 v" r* J) N2 E: F. B$ U/ M* s - server.begin();' y* A/ F% @4 m+ {3 J
- }( |/ c0 }# E- K3 `8 g f' q4 V0 _( A
- }
9 D) a( O B/ i8 m) E* k& D - void loop() {
; W, [8 f5 Q9 x" `1 z% j7 _: ?3 I; d - server.handleClient();
M. p/ m7 g; w& N( B - delay(1);; {* f/ [! ]% }: m1 W. m, ?
- }
& |; U1 c! d8 P1 n - String doGet(String url){
/ n( o# ?) x5 m - if ((WiFiMulti.run() == WL_CONNECTED)) {& G6 J% J/ ?. Q! J, F8 s, k" V" m
- HTTPClient http;
+ h% b- U' `0 e6 U; e5 i( |& F* h - Serial.println("[HTTP] begin...");
2 R0 t. `8 L# | - if (url.startsWith("https")) {/ K9 I- I1 A% Z5 g9 Q! y' c( C2 s
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( X- N* ^6 `: [: b) [
- } else {" ^3 Z6 w; E4 ^8 i! G M: V
- http.begin(url);* W3 }3 L4 Y# K' x" P- m
- }# G& w9 p, A' e! c+ A8 W' q
- Serial.println("[HTTP] GET...");
1 R6 I# q7 e9 E* \ - int httpCode = http.GET();
/ u6 L1 ] l' ^% j& \( f& g, Y - if (httpCode > 0) {' d% j# Q2 e' X) k+ E. [
- Serial.printf("[HTTP] code: %d\n", httpCode);
$ p3 A4 s$ ?% N* r# V - if (httpCode == HTTP_CODE_OK) {) k) u ?6 d9 J
- String payload = http.getString();
% ]. X! _# o2 Y; ]1 ~8 z$ N - Serial.println(payload);$ S* T+ i% L5 @( _: g. `) |' \
- Serial.print("\r\n");$ P2 T2 a8 |& m6 ^
- return payload;
4 w1 f) N+ ~8 n% s: Z - }
+ Q( E6 @& g$ R& {! f3 y) @8 C - } else {
; U$ R) u M3 ?" H; c8 F - Serial.printf("[HTTP] GET... failed, error: %s\n",
7 ?; m4 i$ K' x8 q+ A# m: u! Q6 b; V - http.errorToString(httpCode).c_str());5 W. w' d. X. X5 S8 L
- }6 c5 w2 x/ J7 M! ?/ s& a
- http.end();
' `# @$ l: o9 @: R% | - return "";) T1 `5 v; ^6 T) J! e& C+ m- m
- }
% \7 \+ U7 `9 k& r: x' Z7 q: _ - }. A" s9 G( Q0 J1 J1 M5 l, i
- void mainAction() {
2 _. Z \5 c5 G' P* I: z9 B - // 发送请求: A& o$ Z( O! V' u [- e( K
- doGet("http://google.cn");
( l/ |3 ?9 D( W9 T1 I- M, f) v - }
* h. l% Y4 A, t% h
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