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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)4 P/ v/ Z* P% B( z8 c1 X/ w# ?
- #include <ESP8266HTTPClient.h>
6 w& M; l& T+ Y$ T# ?5 z }" M+ _ - #include <ESP8266WiFi.h>9 S( Z. A: T) X8 |# F
- #include <ESP8266WiFiMulti.h>
4 X* s2 w1 g0 h' M t3 | S- B - #include <ESP8266WebServer.h>3 V* V, [- W1 s# i1 Q, y. M1 m
- #include <arduino.h>
& B4 M$ \9 h7 a" L5 c4 e - ESP8266WiFiMulti WiFiMulti;% [# @: i& i# s
- ESP8266WebServer server(80);
- \7 z" P1 Y: g - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ N; ~; B! k2 P+ U+ ?( t - ADC_MODE(ADC_VCC);
7 u' B, Y9 _9 @ - void setup() {: Z8 J C9 R5 i. Y+ `3 v
- Serial.begin(115200);2 a3 U: f$ }( g& z. U% `
- Serial.print("\r\n\n");( Z, D; W% O% n2 i( l
- pinMode(2,OUTPUT);
+ P/ r4 ^; @0 O6 N" W - // WIFI
$ R3 c# m3 z% U- n - WiFi.mode(WIFI_STA);
& i7 b4 ] D* t1 u - WiFi.hostname("Sparkle");7 {9 w$ Q7 l% d1 o# n/ o! Z% M
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ z7 b3 ^! F! G, o! Q - int tryNum = 15;
0 }% C2 H- F/ T6 K& _9 J% W9 [ - Serial.print("Connect WiFi");3 ]/ `3 J5 v5 D) |6 J' j
- while (WiFiMulti.run() != WL_CONNECTED) {
: G7 t) g4 f# b' h: H - digitalWrite(2,0);6 {0 |8 F6 z# B! c- } y5 B
- delay(200); a( ~$ N: [! ?8 b* E$ _
- digitalWrite(2,1);
- m% s. N3 D) j1 j0 M - delay(300);
" d0 K3 I9 w& `1 Q/ W - Serial.print(".");# n$ v: W6 I s4 Q y; h4 e
- tryNum--;0 S6 G j! g1 X: }0 d: M
- if (tryNum == 0) {
' s( D. A4 A( h" z3 k! a$ p. F( Q - // 1min
: ?6 D: V, |% V8 r* R$ S; b - // ESP.deepSleep(60e6);
. `. g) z- R" }, b - ESP.deepSleep(0);0 y2 z3 S) Q2 j: s0 n6 v4 Y
- }! d: ~& N |2 k0 m6 D' ]
- }# W0 ]+ W- G: H" N
- Serial.print("\r\n");
; x; V! d) c7 a' T - digitalWrite(2,1);3 C# k0 u3 q7 C/ n! `
- Serial.print("IP address : ");
6 Y* Q8 i% ~3 V9 D3 U. N$ t - Serial.println(WiFi.localIP());8 ?) q" ]2 B/ C" f9 f- Y# h8 m# Q' V
- server.on("/", HTTP_GET, [](){# W) Z. `% P8 H$ D( I; s
- server.sendHeader("Connection", "close");
( O/ O8 p' m4 v" U3 ~, ` - server.send(200, "text/html", serverIndex);6 ]; l! x. t ^# g5 v8 y8 Z, x! Y
- });8 Z w# i3 q; s" y( }+ b% A
- server.on("/update", HTTP_POST, [](){% j& ]+ m4 k0 p' r) R- R3 x
- server.sendHeader("Connection", "close");7 m2 T& a' N+ w* h% L; v
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# j' l1 H/ l* ?# P! b. V - ESP.restart();
6 \& M2 Z4 m4 U$ h0 L# M& u - },[](){
4 h' }' z" B* e! s. {1 J! i - HTTPUpload& upload = server.upload();6 J1 F5 e- {3 ]- E
- if(upload.status == UPLOAD_FILE_START){- O C: x/ b; R
- Serial.setDebugOutput(true);
- E! S2 S/ M3 S - Serial.printf("Update: %s\n", upload.filename.c_str());
& U8 ~$ Y7 Z+ I0 J - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- P" V x# S" V( z
- if(!Update.begin(maxSketchSpace)){
! E4 ?1 G3 Q9 v1 J5 S! L - Update.printError(Serial);, I1 J% X8 S% F+ k( G! C5 n+ ]
- }
. H* Y' e* T- v - } else if(upload.status == UPLOAD_FILE_WRITE){1 z& ~! j' o& ?1 O& G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* S2 {! P) f% {0 A8 ?
- Update.printError(Serial);
2 C3 q2 y5 \# u5 E( x, r4 v, i0 u - }8 d g2 O( p1 x
- } else if(upload.status == UPLOAD_FILE_END){1 R/ z% p+ }/ `/ U5 z
- if(Update.end(true)){' W9 }, ?) Z) Q! S, F; o' q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) \' x1 d8 f. K, ? - } else {+ o" q1 ]9 H7 A2 @6 q
- Update.printError(Serial);6 @; @7 K" z6 q: N" c! e/ t
- }5 @8 b, F* y0 X( ]) B
- Serial.setDebugOutput(false);
& m; V2 `* x/ {: E - } V2 p3 n2 f% N4 y, Z; O
- yield();
/ J/ t) p4 g2 }* K( g9 Z - });
/ m; i8 g2 C4 m4 ]. @" M. O. G -
4 J9 B% P% J, w* ^6 Y0 R - digitalWrite(2,0);
$ d6 G% x8 Q2 P; T% T0 ?. B0 A; a - mainAction();
; Z3 I7 J" A5 ^! t! |1 I4 H4 {8 @ - if (digitalRead(0)){
4 T" W/ {3 s" p* A+ v/ t/ c7 b - ESP.deepSleep(0);+ ^$ I! Y) w [) k* p; b
- } else {
9 k. c# U F, `0 v6 ^ - server.begin();
# m) H d a. c# o" e - }; `$ D7 \: S) k# t$ e5 X7 x" c G
- }
% J; D! \" M# t! z q - void loop() {
. v' @2 w6 X. n# Y3 t% K( N - server.handleClient();
2 u- o, z0 [/ j, D0 Z0 m' s - delay(1);
' j+ U5 [7 ^1 k5 _: i# t% a7 ^0 ~7 l - }
]/ G/ x8 |" l8 b( Z2 o% s% W - String doGet(String url){! r- Q; P1 d& N' e4 ?8 `& u" t
- if ((WiFiMulti.run() == WL_CONNECTED)) {2 U4 I. i" L: u. L7 u
- HTTPClient http;
, {0 ]7 j, N2 M2 O - Serial.println("[HTTP] begin..."); D5 M2 |5 W) g( y
- if (url.startsWith("https")) {
9 T/ v# f; J3 e* l2 d' t - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 h" ^, K9 S I2 S8 l
- } else {$ y' r( s& w6 n1 D/ y+ X7 z2 R
- http.begin(url);% C! p+ j& l5 m, Y/ Q/ ` Y
- }3 ?9 P6 W, g6 W5 v2 Y
- Serial.println("[HTTP] GET...");5 W5 q! y6 {- L! \: V$ C# W# O
- int httpCode = http.GET();6 M" `/ j& P$ J: }% T' e
- if (httpCode > 0) {) M6 u, R2 {. F, V+ L. P5 o) w
- Serial.printf("[HTTP] code: %d\n", httpCode);% K% }8 ?: D' q. J1 G' E3 n; p- D
- if (httpCode == HTTP_CODE_OK) {
$ p3 k& k. K8 o; [ - String payload = http.getString();
* W6 |* ^) D `4 c6 q6 u% b - Serial.println(payload);* q% w/ P4 \6 a3 v6 l* Y
- Serial.print("\r\n");
( Q- u6 G2 O5 O6 W* y8 F - return payload;
2 O. i8 e% f9 Z - }
/ L4 x3 B3 s6 V) }8 ~! K( \ - } else {( n! @( q, X8 v: d* q* ?) [$ W( F
- Serial.printf("[HTTP] GET... failed, error: %s\n",
5 m. o; _$ s$ K - http.errorToString(httpCode).c_str());: z7 ?7 v# j1 M7 ~4 ^- \& |% A
- }
4 i& I7 v' h. s& E- Q& I2 L3 |9 K - http.end();
i( f3 N/ q: F7 A4 c( @ - return "";
+ U8 [8 [- E6 R! U) q; x5 {( m - }1 k" h2 y0 Q Y& o" U% e# S$ V
- }
: @! A+ B x2 C2 l9 Q - void mainAction() {
, r# {+ I/ T2 \$ g4 j3 S* E' z9 F - // 发送请求
: a5 Q1 E9 {1 k6 f - doGet("http://google.cn");
- i8 I% D h# }- e7 e1 G" Z - }
4 t" Y9 w9 b# F4 `* @; a& l# O
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