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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)
! s! a( f1 N# f, r t- #include <ESP8266HTTPClient.h>8 @: G v2 |- Q/ ~$ S- ~/ I
- #include <ESP8266WiFi.h>
! X7 V- u5 w! h! H - #include <ESP8266WiFiMulti.h>/ G0 B& z& g* G9 e5 W, b
- #include <ESP8266WebServer.h>' g- G+ R( m4 ?# G
- #include <arduino.h>, O% v K0 T, j' e" o7 K$ o2 e
- ESP8266WiFiMulti WiFiMulti;. o$ _2 q* i; g0 \
- ESP8266WebServer server(80); _$ c6 b. s$ S/ I0 D; K
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' R( T+ D. m. R( ?: o' t - ADC_MODE(ADC_VCC);
' u2 n" h) I6 N. j. Y& L - void setup() {( X' i! G/ m: a7 L- i
- Serial.begin(115200);
! \. U/ A/ B: ~/ V/ o - Serial.print("\r\n\n");
# v J) t# g8 W - pinMode(2,OUTPUT);
; a, f8 Z& t4 f1 v) {. U - // WIFI! W C1 @( `0 s$ z) y- y; q- u% N
- WiFi.mode(WIFI_STA);' `4 r; r9 s! @5 o$ d7 q) y
- WiFi.hostname("Sparkle");
- b$ q4 V( ~& ]& q - WiFiMulti.addAP("wifi ssid", "wifi password");
4 S0 ]8 G+ Z/ G6 {( ^' Q8 d( ? - int tryNum = 15;
8 W& q4 Q8 a1 `* w6 p+ T/ M" B. p - Serial.print("Connect WiFi");
6 V/ f1 g z4 ?/ L" J7 b; } - while (WiFiMulti.run() != WL_CONNECTED) {6 H& _: z) p$ q. V% X1 x
- digitalWrite(2,0);2 u( U$ v; D' q6 I) w. U
- delay(200);
" l" d* N) C& ?2 Q - digitalWrite(2,1);
- Q" K; c6 ?7 d( P, q* N - delay(300);+ s9 ]" v; ?$ x
- Serial.print(".");* h5 @, O$ W% _* a& n) Q0 x/ \* x
- tryNum--;
1 J M& W0 t% ?9 H - if (tryNum == 0) {
; W% v& m( e; {% j& q, c - // 1min
) u7 L1 Y6 L- R% \6 y4 g - // ESP.deepSleep(60e6);
5 S1 Q6 c6 G1 s/ ]: G - ESP.deepSleep(0);. E9 f( m$ x4 j- L# ~: F
- }. H; i4 v V; x6 o! P; o
- }- R; H! U. N X) _
- Serial.print("\r\n");
( m7 L( x( t6 c& H - digitalWrite(2,1);
4 E' w l+ e: g. g" V - Serial.print("IP address : ");, U4 F6 x" [5 x. o: E' b
- Serial.println(WiFi.localIP());8 w6 o+ J; \; Z+ W
- server.on("/", HTTP_GET, [](){; M9 ^6 g! @6 @0 J/ M
- server.sendHeader("Connection", "close");
9 r4 H A" f1 j/ J( B7 W - server.send(200, "text/html", serverIndex);5 L0 U1 R; z3 g& i0 a+ R9 G1 p) I# T
- });1 S- b% Y; @* v; B) S9 b
- server.on("/update", HTTP_POST, [](){
l' H8 n" t% d - server.sendHeader("Connection", "close");
2 n. x6 d8 j" T9 Q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' d! G; M. p C& s0 a - ESP.restart();
4 n8 o0 B9 B$ V/ E) R - },[](){
4 i; e6 s9 K4 t; Q- u R - HTTPUpload& upload = server.upload();# c; f$ d& _$ W3 Y: @
- if(upload.status == UPLOAD_FILE_START){
. u5 Y3 A; u0 l$ `! Z - Serial.setDebugOutput(true);
; U) M( e+ ?; V: F' H) ]( P - Serial.printf("Update: %s\n", upload.filename.c_str());6 |- H; D2 f" Z1 d" S
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
# A6 ], } O9 ? - if(!Update.begin(maxSketchSpace)){
9 q6 [/ z2 j8 v) @5 {5 n+ J - Update.printError(Serial);
4 w6 f# u W# P- r - }$ D. r: m9 R+ f# V: v7 p
- } else if(upload.status == UPLOAD_FILE_WRITE){# p) z" e7 w- T; e. u$ W }% i
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
1 s+ ]" ?- I" ?# b+ H) B3 Q& G$ B - Update.printError(Serial);3 v, |: ]4 n. N! h& B2 ~) F
- }
3 [) X- J7 i' U, j# c' H - } else if(upload.status == UPLOAD_FILE_END){
?$ e" b/ i9 Y, m, p - if(Update.end(true)){6 R! X, n2 t% C$ o
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
' G2 f% D v5 }) M# V - } else {/ K4 s) O% ^% F
- Update.printError(Serial);
$ l8 L' E# a" l1 C9 n8 B - }
6 W# h% I3 [ N6 ]. r5 w2 s( ~; } - Serial.setDebugOutput(false);' ^) a* W6 F3 j& a
- }5 A) M) N4 W, x7 U8 J! J$ T% g9 K$ U7 g
- yield();( I* C* C% i" d! a
- });
0 z: C1 i5 g3 g/ Y2 A' v- E9 S -
* |/ D( M$ Q- F1 a, h% ~ - digitalWrite(2,0);
3 ]' x" y5 {9 N( V6 _ - mainAction();! G; _* O% `8 b$ O3 L
- if (digitalRead(0)){
' s1 L4 c. l. d9 l3 c - ESP.deepSleep(0);! O$ h' Z1 I: B9 ]- W& V
- } else {
. p% k# w3 ?0 V/ S - server.begin();
Q s9 a8 u6 J8 J& C7 v0 W, X - }
1 U u) S) B- j" b) C2 ?) [: y - }) f$ m2 n5 F4 t4 A
- void loop() {
" |2 o# ?; u" ], u - server.handleClient();
i/ s) w/ c" H# r0 g - delay(1);8 }& Z4 S e' C$ Z. \/ Q
- }
% M4 }) J6 ]" V4 c; C - String doGet(String url){, y# V y @9 q9 y
- if ((WiFiMulti.run() == WL_CONNECTED)) {
8 w/ Q! Q9 A6 L! q8 f- T - HTTPClient http;' M6 C' o" [6 ^8 F0 o+ Q, N
- Serial.println("[HTTP] begin...");0 W9 P# W' B ?' L( t2 G
- if (url.startsWith("https")) {6 n5 s+ {) L2 c! z! j
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" y" j5 Q1 B* M+ |7 E! l - } else {
% o2 b& ^& d! n; ? - http.begin(url);& d, Q" v" E, E4 [" ^
- }% c% P2 b- ~) |) Z% s" |( b
- Serial.println("[HTTP] GET...");
. d! @2 t2 v5 D% _/ t9 }# ~$ L - int httpCode = http.GET();4 a; K% f% E; N! W3 f
- if (httpCode > 0) {
' F7 N. q& }, [- H - Serial.printf("[HTTP] code: %d\n", httpCode);" B9 R% r& i/ h+ F% B. Q4 y5 Z
- if (httpCode == HTTP_CODE_OK) {4 @: l8 U# W6 Z Q$ ]3 X
- String payload = http.getString();
* ^. D2 W4 j( p' p - Serial.println(payload);8 t( M3 D' r! s+ a% d
- Serial.print("\r\n");
& O+ s0 q' E; m! Q( b; X, L8 q7 q0 V - return payload;
" Q! w6 a4 Z$ d2 C - }1 {# m! G! |8 c: z+ S- V
- } else {: A/ P |+ y! J1 b$ y% ^, G
- Serial.printf("[HTTP] GET... failed, error: %s\n",
5 V# I. s7 s6 v! g/ V - http.errorToString(httpCode).c_str());
' t, Y5 ]/ U5 s# Y; n' X! v - }. ~/ L! o+ W. ~
- http.end();- w) f( s/ f* a) n6 K8 {/ F4 L
- return "";
9 O- Z) `4 c6 t" z, g# \ - }$ k- Q7 s d- M4 C" I, W( u
- }
* }0 t% P+ [" D X" x5 Q! o: v - void mainAction() {
) F1 `6 n# |$ M" J0 D5 h( E - // 发送请求 Z3 V- K7 K( c6 Y/ p) p, E/ d9 v
- doGet("http://google.cn");/ F6 r, ~/ i# @: v$ A' X% Y c
- }- C% D: l. `! u# s4 b
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